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Finding the Fourth Proportional to 2,691.99, 4,038.99 and 1,523.31

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Solution

The fourth proportional to 2,691.99, 4,038.99 and 1,523.31 is: 2,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.99 : 4,038.99 = 1,523.31 : x
  2. Step 2: Convert to fraction form
    2,691.99/4,038.99 = 1,523.31/x
  3. Step 3: Cross multiply
    2,691.99x = 4,038.99 × 1,523.31
  4. Step 4: Simplify right side
    2,691.99x = 6,152,633.86
  5. Step 5: Solve for x
    x = 6,152,633.86/2,691.99
  6. Step 6: Final answer
    x = 2,285.53

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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.