Home / 1,717.13-2,575.82-621.50

Finding the Fourth Proportional to 1,717.13, 2,575.82 and 621.50

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Solution

The fourth proportional to 1,717.13, 2,575.82 and 621.50 is: 932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.13 : 2,575.82 = 621.50 : x
  2. Step 2: Convert to fraction form
    1,717.13/2,575.82 = 621.50/x
  3. Step 3: Cross multiply
    1,717.13x = 2,575.82 × 621.50
  4. Step 4: Simplify right side
    1,717.13x = 1,600,880.12
  5. Step 5: Solve for x
    x = 1,600,880.12/1,717.13
  6. Step 6: Final answer
    x = 932.30

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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.