Home / 3,628.60-5,442.90-2,899.60

Finding the Fourth Proportional to 3,628.60, 5,442.90 and 2,899.60

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Solution

The fourth proportional to 3,628.60, 5,442.90 and 2,899.60 is: 4,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.60 : 5,442.90 = 2,899.60 : x
  2. Step 2: Convert to fraction form
    3,628.60/5,442.90 = 2,899.60/x
  3. Step 3: Cross multiply
    3,628.60x = 5,442.90 × 2,899.60
  4. Step 4: Simplify right side
    3,628.60x = 15,782,232.84
  5. Step 5: Solve for x
    x = 15,782,232.84/3,628.60
  6. Step 6: Final answer
    x = 4,349.40

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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.