Home / 5,402.40-7,455.09-3,278.16

Finding the Fourth Proportional to 5,402.40, 7,455.09 and 3,278.16

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Solution

The fourth proportional to 5,402.40, 7,455.09 and 3,278.16 is: 4,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.40 : 7,455.09 = 3,278.16 : x
  2. Step 2: Convert to fraction form
    5,402.40/7,455.09 = 3,278.16/x
  3. Step 3: Cross multiply
    5,402.40x = 7,455.09 × 3,278.16
  4. Step 4: Simplify right side
    5,402.40x = 24,438,977.83
  5. Step 5: Solve for x
    x = 24,438,977.83/5,402.40
  6. Step 6: Final answer
    x = 4,523.73

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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.