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Finding the Fourth Proportional to 1,132.11, 1,551.02 and 1,088.37

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Solution

The fourth proportional to 1,132.11, 1,551.02 and 1,088.37 is: 1,491.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.11 : 1,551.02 = 1,088.37 : x
  2. Step 2: Convert to fraction form
    1,132.11/1,551.02 = 1,088.37/x
  3. Step 3: Cross multiply
    1,132.11x = 1,551.02 × 1,088.37
  4. Step 4: Simplify right side
    1,132.11x = 1,688,078.20
  5. Step 5: Solve for x
    x = 1,688,078.20/1,132.11
  6. Step 6: Final answer
    x = 1,491.09

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.