Home / 3,177.28-4,385.10-1,851.41

Finding the Fourth Proportional to 3,177.28, 4,385.10 and 1,851.41

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Solution

The fourth proportional to 3,177.28, 4,385.10 and 1,851.41 is: 2,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.28 : 4,385.10 = 1,851.41 : x
  2. Step 2: Convert to fraction form
    3,177.28/4,385.10 = 1,851.41/x
  3. Step 3: Cross multiply
    3,177.28x = 4,385.10 × 1,851.41
  4. Step 4: Simplify right side
    3,177.28x = 8,118,635.90
  5. Step 5: Solve for x
    x = 8,118,635.90/3,177.28
  6. Step 6: Final answer
    x = 2,555.21

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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.