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Finding the Fourth Proportional to 1,520.52, 2,098.35 and 899.52

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Solution

The fourth proportional to 1,520.52, 2,098.35 and 899.52 is: 1,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.52 : 2,098.35 = 899.52 : x
  2. Step 2: Convert to fraction form
    1,520.52/2,098.35 = 899.52/x
  3. Step 3: Cross multiply
    1,520.52x = 2,098.35 × 899.52
  4. Step 4: Simplify right side
    1,520.52x = 1,887,507.79
  5. Step 5: Solve for x
    x = 1,887,507.79/1,520.52
  6. Step 6: Final answer
    x = 1,241.36

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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.