Home / 1,711.52-2,564.58-1,247.16

Finding the Fourth Proportional to 1,711.52, 2,564.58 and 1,247.16

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Solution

The fourth proportional to 1,711.52, 2,564.58 and 1,247.16 is: 1,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.52 : 2,564.58 = 1,247.16 : x
  2. Step 2: Convert to fraction form
    1,711.52/2,564.58 = 1,247.16/x
  3. Step 3: Cross multiply
    1,711.52x = 2,564.58 × 1,247.16
  4. Step 4: Simplify right side
    1,711.52x = 3,198,441.59
  5. Step 5: Solve for x
    x = 3,198,441.59/1,711.52
  6. Step 6: Final answer
    x = 1,868.78

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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.