Home / 1,165.52-1,749.38-425.84

Finding the Fourth Proportional to 1,165.52, 1,749.38 and 425.84

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Solution

The fourth proportional to 1,165.52, 1,749.38 and 425.84 is: 639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.52 : 1,749.38 = 425.84 : x
  2. Step 2: Convert to fraction form
    1,165.52/1,749.38 = 425.84/x
  3. Step 3: Cross multiply
    1,165.52x = 1,749.38 × 425.84
  4. Step 4: Simplify right side
    1,165.52x = 744,945.10
  5. Step 5: Solve for x
    x = 744,945.10/1,165.52
  6. Step 6: Final answer
    x = 639.16

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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.