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Finding the Fourth Proportional to 3,592.64, 5,389.20 and 960.12

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Solution

The fourth proportional to 3,592.64, 5,389.20 and 960.12 is: 1,440.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.64 : 5,389.20 = 960.12 : x
  2. Step 2: Convert to fraction form
    3,592.64/5,389.20 = 960.12/x
  3. Step 3: Cross multiply
    3,592.64x = 5,389.20 × 960.12
  4. Step 4: Simplify right side
    3,592.64x = 5,174,278.70
  5. Step 5: Solve for x
    x = 5,174,278.70/3,592.64
  6. Step 6: Final answer
    x = 1,440.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.