Home / 1,712.48-2,569.10-542.55

Finding the Fourth Proportional to 1,712.48, 2,569.10 and 542.55

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Solution

The fourth proportional to 1,712.48, 2,569.10 and 542.55 is: 813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.48 : 2,569.10 = 542.55 : x
  2. Step 2: Convert to fraction form
    1,712.48/2,569.10 = 542.55/x
  3. Step 3: Cross multiply
    1,712.48x = 2,569.10 × 542.55
  4. Step 4: Simplify right side
    1,712.48x = 1,393,865.21
  5. Step 5: Solve for x
    x = 1,393,865.21/1,712.48
  6. Step 6: Final answer
    x = 813.95

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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.