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Finding the Fourth Proportional to 1,511.49, 2,265.84 and 587.66

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Solution

The fourth proportional to 1,511.49, 2,265.84 and 587.66 is: 880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.49 : 2,265.84 = 587.66 : x
  2. Step 2: Convert to fraction form
    1,511.49/2,265.84 = 587.66/x
  3. Step 3: Cross multiply
    1,511.49x = 2,265.84 × 587.66
  4. Step 4: Simplify right side
    1,511.49x = 1,331,532.21
  5. Step 5: Solve for x
    x = 1,331,532.21/1,511.49
  6. Step 6: Final answer
    x = 880.94

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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.