Home / 5,398.08-7,449.60-3,040.32

Finding the Fourth Proportional to 5,398.08, 7,449.60 and 3,040.32

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Solution

The fourth proportional to 5,398.08, 7,449.60 and 3,040.32 is: 4,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.08 : 7,449.60 = 3,040.32 : x
  2. Step 2: Convert to fraction form
    5,398.08/7,449.60 = 3,040.32/x
  3. Step 3: Cross multiply
    5,398.08x = 7,449.60 × 3,040.32
  4. Step 4: Simplify right side
    5,398.08x = 22,649,167.87
  5. Step 5: Solve for x
    x = 22,649,167.87/5,398.08
  6. Step 6: Final answer
    x = 4,195.78

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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.