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Finding the Fourth Proportional to 1,753.41, 2,630.48 and 520.77

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Solution

The fourth proportional to 1,753.41, 2,630.48 and 520.77 is: 781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.41 : 2,630.48 = 520.77 : x
  2. Step 2: Convert to fraction form
    1,753.41/2,630.48 = 520.77/x
  3. Step 3: Cross multiply
    1,753.41x = 2,630.48 × 520.77
  4. Step 4: Simplify right side
    1,753.41x = 1,369,872.47
  5. Step 5: Solve for x
    x = 1,369,872.47/1,753.41
  6. Step 6: Final answer
    x = 781.26

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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.