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Finding the Fourth Proportional to 552.89, 761.98 and 537.09

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Solution

The fourth proportional to 552.89, 761.98 and 537.09 is: 740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.89 : 761.98 = 537.09 : x
  2. Step 2: Convert to fraction form
    552.89/761.98 = 537.09/x
  3. Step 3: Cross multiply
    552.89x = 761.98 × 537.09
  4. Step 4: Simplify right side
    552.89x = 409,251.84
  5. Step 5: Solve for x
    x = 409,251.84/552.89
  6. Step 6: Final answer
    x = 740.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.