Home / 5,420.42-7,480.19-3,062.55

Finding the Fourth Proportional to 5,420.42, 7,480.19 and 3,062.55

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Solution

The fourth proportional to 5,420.42, 7,480.19 and 3,062.55 is: 4,226.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.42 : 7,480.19 = 3,062.55 : x
  2. Step 2: Convert to fraction form
    5,420.42/7,480.19 = 3,062.55/x
  3. Step 3: Cross multiply
    5,420.42x = 7,480.19 × 3,062.55
  4. Step 4: Simplify right side
    5,420.42x = 22,908,468.62
  5. Step 5: Solve for x
    x = 22,908,468.62/5,420.42
  6. Step 6: Final answer
    x = 4,226.33

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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.