Home / 5,405.38-7,460.25-3,912.76

Finding the Fourth Proportional to 5,405.38, 7,460.25 and 3,912.76

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Solution

The fourth proportional to 5,405.38, 7,460.25 and 3,912.76 is: 5,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.38 : 7,460.25 = 3,912.76 : x
  2. Step 2: Convert to fraction form
    5,405.38/7,460.25 = 3,912.76/x
  3. Step 3: Cross multiply
    5,405.38x = 7,460.25 × 3,912.76
  4. Step 4: Simplify right side
    5,405.38x = 29,190,167.79
  5. Step 5: Solve for x
    x = 29,190,167.79/5,405.38
  6. Step 6: Final answer
    x = 5,400.21

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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.