Home / 1,711.20-2,564.10-1,435.80

Finding the Fourth Proportional to 1,711.20, 2,564.10 and 1,435.80

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Solution

The fourth proportional to 1,711.20, 2,564.10 and 1,435.80 is: 2,151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.20 : 2,564.10 = 1,435.80 : x
  2. Step 2: Convert to fraction form
    1,711.20/2,564.10 = 1,435.80/x
  3. Step 3: Cross multiply
    1,711.20x = 2,564.10 × 1,435.80
  4. Step 4: Simplify right side
    1,711.20x = 3,681,534.78
  5. Step 5: Solve for x
    x = 3,681,534.78/1,711.20
  6. Step 6: Final answer
    x = 2,151.43

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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.