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Finding the Fourth Proportional to 967, 1,334.10 and 672.88

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Solution

The fourth proportional to 967, 1,334.10 and 672.88 is: 928.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    967 : 1,334.10 = 672.88 : x
  2. Step 2: Convert to fraction form
    967/1,334.10 = 672.88/x
  3. Step 3: Cross multiply
    967x = 1,334.10 × 672.88
  4. Step 4: Simplify right side
    967x = 897,689.21
  5. Step 5: Solve for x
    x = 897,689.21/967
  6. Step 6: Final answer
    x = 928.32

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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.