Home / 1,182.18-1,631.05-710.26

Finding the Fourth Proportional to 1,182.18, 1,631.05 and 710.26

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Solution

The fourth proportional to 1,182.18, 1,631.05 and 710.26 is: 979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.18 : 1,631.05 = 710.26 : x
  2. Step 2: Convert to fraction form
    1,182.18/1,631.05 = 710.26/x
  3. Step 3: Cross multiply
    1,182.18x = 1,631.05 × 710.26
  4. Step 4: Simplify right side
    1,182.18x = 1,158,469.57
  5. Step 5: Solve for x
    x = 1,158,469.57/1,182.18
  6. Step 6: Final answer
    x = 979.94

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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.