Home / 1,717.24-2,575.88-621.64

Finding the Fourth Proportional to 1,717.24, 2,575.88 and 621.64

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Solution

The fourth proportional to 1,717.24, 2,575.88 and 621.64 is: 932.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.24 : 2,575.88 = 621.64 : x
  2. Step 2: Convert to fraction form
    1,717.24/2,575.88 = 621.64/x
  3. Step 3: Cross multiply
    1,717.24x = 2,575.88 × 621.64
  4. Step 4: Simplify right side
    1,717.24x = 1,601,270.04
  5. Step 5: Solve for x
    x = 1,601,270.04/1,717.24
  6. Step 6: Final answer
    x = 932.47

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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.