Home / 1,742.18-2,614.24-646.76

Finding the Fourth Proportional to 1,742.18, 2,614.24 and 646.76

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Solution

The fourth proportional to 1,742.18, 2,614.24 and 646.76 is: 970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.18 : 2,614.24 = 646.76 : x
  2. Step 2: Convert to fraction form
    1,742.18/2,614.24 = 646.76/x
  3. Step 3: Cross multiply
    1,742.18x = 2,614.24 × 646.76
  4. Step 4: Simplify right side
    1,742.18x = 1,690,785.86
  5. Step 5: Solve for x
    x = 1,690,785.86/1,742.18
  6. Step 6: Final answer
    x = 970.50

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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.