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Finding the Fourth Proportional to 1,156.92, 1,597.23 and 764.88

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Solution

The fourth proportional to 1,156.92, 1,597.23 and 764.88 is: 1,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.92 : 1,597.23 = 764.88 : x
  2. Step 2: Convert to fraction form
    1,156.92/1,597.23 = 764.88/x
  3. Step 3: Cross multiply
    1,156.92x = 1,597.23 × 764.88
  4. Step 4: Simplify right side
    1,156.92x = 1,221,689.28
  5. Step 5: Solve for x
    x = 1,221,689.28/1,156.92
  6. Step 6: Final answer
    x = 1,055.98

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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.