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Finding the Fourth Proportional to 1,135.02, 1,691.12 and 1,060.50

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Solution

The fourth proportional to 1,135.02, 1,691.12 and 1,060.50 is: 1,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.02 : 1,691.12 = 1,060.50 : x
  2. Step 2: Convert to fraction form
    1,135.02/1,691.12 = 1,060.50/x
  3. Step 3: Cross multiply
    1,135.02x = 1,691.12 × 1,060.50
  4. Step 4: Simplify right side
    1,135.02x = 1,793,427.46
  5. Step 5: Solve for x
    x = 1,793,427.46/1,135.02
  6. Step 6: Final answer
    x = 1,580.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.