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Finding the Fourth Proportional to 1,060.13, 1,587.11 and 948.98

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Solution

The fourth proportional to 1,060.13, 1,587.11 and 948.98 is: 1,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.13 : 1,587.11 = 948.98 : x
  2. Step 2: Convert to fraction form
    1,060.13/1,587.11 = 948.98/x
  3. Step 3: Cross multiply
    1,060.13x = 1,587.11 × 948.98
  4. Step 4: Simplify right side
    1,060.13x = 1,506,130.08
  5. Step 5: Solve for x
    x = 1,506,130.08/1,060.13
  6. Step 6: Final answer
    x = 1,420.71

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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.