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Finding the Fourth Proportional to 956.13, 1,319.58 and 625.52

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Solution

The fourth proportional to 956.13, 1,319.58 and 625.52 is: 863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.13 : 1,319.58 = 625.52 : x
  2. Step 2: Convert to fraction form
    956.13/1,319.58 = 625.52/x
  3. Step 3: Cross multiply
    956.13x = 1,319.58 × 625.52
  4. Step 4: Simplify right side
    956.13x = 825,423.68
  5. Step 5: Solve for x
    x = 825,423.68/956.13
  6. Step 6: Final answer
    x = 863.30

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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.