Home / 2,040.64-2,814.40-1,778.20

Finding the Fourth Proportional to 2,040.64, 2,814.40 and 1,778.20

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Solution

The fourth proportional to 2,040.64, 2,814.40 and 1,778.20 is: 2,452.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.64 : 2,814.40 = 1,778.20 : x
  2. Step 2: Convert to fraction form
    2,040.64/2,814.40 = 1,778.20/x
  3. Step 3: Cross multiply
    2,040.64x = 2,814.40 × 1,778.20
  4. Step 4: Simplify right side
    2,040.64x = 5,004,566.08
  5. Step 5: Solve for x
    x = 5,004,566.08/2,040.64
  6. Step 6: Final answer
    x = 2,452.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.