Home / 2,821,142.60-4,231,713.90-2,779,152.20

Finding the Fourth Proportional to 2,821,142.60, 4,231,713.90 and 2,779,152.20

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Solution

The fourth proportional to 2,821,142.60, 4,231,713.90 and 2,779,152.20 is: 4,168,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821,142.60 : 4,231,713.90 = 2,779,152.20 : x
  2. Step 2: Convert to fraction form
    2,821,142.60/4,231,713.90 = 2,779,152.20/x
  3. Step 3: Cross multiply
    2,821,142.60x = 4,231,713.90 × 2,779,152.20
  4. Step 4: Simplify right side
    2,821,142.60x = 11,760,576,994,955.58
  5. Step 5: Solve for x
    x = 11,760,576,994,955.58/2,821,142.60
  6. Step 6: Final answer
    x = 4,168,728.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.