Home / 5,420.87-7,479.97-3,062.15

Finding the Fourth Proportional to 5,420.87, 7,479.97 and 3,062.15

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Solution

The fourth proportional to 5,420.87, 7,479.97 and 3,062.15 is: 4,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.87 : 7,479.97 = 3,062.15 : x
  2. Step 2: Convert to fraction form
    5,420.87/7,479.97 = 3,062.15/x
  3. Step 3: Cross multiply
    5,420.87x = 7,479.97 × 3,062.15
  4. Step 4: Simplify right side
    5,420.87x = 22,904,745.08
  5. Step 5: Solve for x
    x = 22,904,745.08/5,420.87
  6. Step 6: Final answer
    x = 4,225.29

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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.