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Finding the Fourth Proportional to 943.43, 1,302.14 and 632.75

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Solution

The fourth proportional to 943.43, 1,302.14 and 632.75 is: 873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.43 : 1,302.14 = 632.75 : x
  2. Step 2: Convert to fraction form
    943.43/1,302.14 = 632.75/x
  3. Step 3: Cross multiply
    943.43x = 1,302.14 × 632.75
  4. Step 4: Simplify right side
    943.43x = 823,925.92
  5. Step 5: Solve for x
    x = 823,925.92/943.43
  6. Step 6: Final answer
    x = 873.33

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Double scale
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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.