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Finding the Fourth Proportional to 956.14, 1,320.71 and 737.79

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Solution

The fourth proportional to 956.14, 1,320.71 and 737.79 is: 1,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.14 : 1,320.71 = 737.79 : x
  2. Step 2: Convert to fraction form
    956.14/1,320.71 = 737.79/x
  3. Step 3: Cross multiply
    956.14x = 1,320.71 × 737.79
  4. Step 4: Simplify right side
    956.14x = 974,406.63
  5. Step 5: Solve for x
    x = 974,406.63/956.14
  6. Step 6: Final answer
    x = 1,019.10

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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.