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Finding the Fourth Proportional to 1,232.19, 1,700.37 and 672.65

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Solution

The fourth proportional to 1,232.19, 1,700.37 and 672.65 is: 928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.19 : 1,700.37 = 672.65 : x
  2. Step 2: Convert to fraction form
    1,232.19/1,700.37 = 672.65/x
  3. Step 3: Cross multiply
    1,232.19x = 1,700.37 × 672.65
  4. Step 4: Simplify right side
    1,232.19x = 1,143,753.88
  5. Step 5: Solve for x
    x = 1,143,753.88/1,232.19
  6. Step 6: Final answer
    x = 928.23

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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.