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Finding the Fourth Proportional to 966.90, 1,334.30 and 524.82

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Solution

The fourth proportional to 966.90, 1,334.30 and 524.82 is: 724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.90 : 1,334.30 = 524.82 : x
  2. Step 2: Convert to fraction form
    966.90/1,334.30 = 524.82/x
  3. Step 3: Cross multiply
    966.90x = 1,334.30 × 524.82
  4. Step 4: Simplify right side
    966.90x = 700,267.33
  5. Step 5: Solve for x
    x = 700,267.33/966.90
  6. Step 6: Final answer
    x = 724.24

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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.