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Finding the Fourth Proportional to 1,149.34, 1,585.99 and 677.16

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Solution

The fourth proportional to 1,149.34, 1,585.99 and 677.16 is: 934.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.34 : 1,585.99 = 677.16 : x
  2. Step 2: Convert to fraction form
    1,149.34/1,585.99 = 677.16/x
  3. Step 3: Cross multiply
    1,149.34x = 1,585.99 × 677.16
  4. Step 4: Simplify right side
    1,149.34x = 1,073,966.03
  5. Step 5: Solve for x
    x = 1,073,966.03/1,149.34
  6. Step 6: Final answer
    x = 934.42

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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.