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Finding the Fourth Proportional to 693.77, 956.61 and 546.75

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Solution

The fourth proportional to 693.77, 956.61 and 546.75 is: 753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.77 : 956.61 = 546.75 : x
  2. Step 2: Convert to fraction form
    693.77/956.61 = 546.75/x
  3. Step 3: Cross multiply
    693.77x = 956.61 × 546.75
  4. Step 4: Simplify right side
    693.77x = 523,026.52
  5. Step 5: Solve for x
    x = 523,026.52/693.77
  6. Step 6: Final answer
    x = 753.90

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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.