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Finding the Fourth Proportional to 933.38, 1,288.08 and 560.37

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Solution

The fourth proportional to 933.38, 1,288.08 and 560.37 is: 773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.38 : 1,288.08 = 560.37 : x
  2. Step 2: Convert to fraction form
    933.38/1,288.08 = 560.37/x
  3. Step 3: Cross multiply
    933.38x = 1,288.08 × 560.37
  4. Step 4: Simplify right side
    933.38x = 721,801.39
  5. Step 5: Solve for x
    x = 721,801.39/933.38
  6. Step 6: Final answer
    x = 773.32

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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.