Home / 5,402.28-7,456.24-3,165.32

Finding the Fourth Proportional to 5,402.28, 7,456.24 and 3,165.32

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Solution

The fourth proportional to 5,402.28, 7,456.24 and 3,165.32 is: 4,368.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.28 : 7,456.24 = 3,165.32 : x
  2. Step 2: Convert to fraction form
    5,402.28/7,456.24 = 3,165.32/x
  3. Step 3: Cross multiply
    5,402.28x = 7,456.24 × 3,165.32
  4. Step 4: Simplify right side
    5,402.28x = 23,601,385.60
  5. Step 5: Solve for x
    x = 23,601,385.60/5,402.28
  6. Step 6: Final answer
    x = 4,368.78

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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.