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Finding the Fourth Proportional to 1,150.73, 1,587.95 and 653.37

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Solution

The fourth proportional to 1,150.73, 1,587.95 and 653.37 is: 901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.73 : 1,587.95 = 653.37 : x
  2. Step 2: Convert to fraction form
    1,150.73/1,587.95 = 653.37/x
  3. Step 3: Cross multiply
    1,150.73x = 1,587.95 × 653.37
  4. Step 4: Simplify right side
    1,150.73x = 1,037,515.62
  5. Step 5: Solve for x
    x = 1,037,515.62/1,150.73
  6. Step 6: Final answer
    x = 901.62

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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.