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Finding the Fourth Proportional to 1,513.01, 2,269.11 and 538.58

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Solution

The fourth proportional to 1,513.01, 2,269.11 and 538.58 is: 807.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.01 : 2,269.11 = 538.58 : x
  2. Step 2: Convert to fraction form
    1,513.01/2,269.11 = 538.58/x
  3. Step 3: Cross multiply
    1,513.01x = 2,269.11 × 538.58
  4. Step 4: Simplify right side
    1,513.01x = 1,222,097.26
  5. Step 5: Solve for x
    x = 1,222,097.26/1,513.01
  6. Step 6: Final answer
    x = 807.73

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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.