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Finding the Fourth Proportional to 1,182.26, 1,631.52 and 651.13

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Solution

The fourth proportional to 1,182.26, 1,631.52 and 651.13 is: 898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.26 : 1,631.52 = 651.13 : x
  2. Step 2: Convert to fraction form
    1,182.26/1,631.52 = 651.13/x
  3. Step 3: Cross multiply
    1,182.26x = 1,631.52 × 651.13
  4. Step 4: Simplify right side
    1,182.26x = 1,062,320.20
  5. Step 5: Solve for x
    x = 1,062,320.20/1,182.26
  6. Step 6: Final answer
    x = 898.55

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1.5x scale

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.