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Finding the Fourth Proportional to 1,717.68, 2,585.68 and 1,479.52

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Solution

The fourth proportional to 1,717.68, 2,585.68 and 1,479.52 is: 2,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.68 : 2,585.68 = 1,479.52 : x
  2. Step 2: Convert to fraction form
    1,717.68/2,585.68 = 1,479.52/x
  3. Step 3: Cross multiply
    1,717.68x = 2,585.68 × 1,479.52
  4. Step 4: Simplify right side
    1,717.68x = 3,825,565.27
  5. Step 5: Solve for x
    x = 3,825,565.27/1,717.68
  6. Step 6: Final answer
    x = 2,227.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.