Home / 5,420.70-7,480.26-3,062.88

Finding the Fourth Proportional to 5,420.70, 7,480.26 and 3,062.88

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Solution

The fourth proportional to 5,420.70, 7,480.26 and 3,062.88 is: 4,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.70 : 7,480.26 = 3,062.88 : x
  2. Step 2: Convert to fraction form
    5,420.70/7,480.26 = 3,062.88/x
  3. Step 3: Cross multiply
    5,420.70x = 7,480.26 × 3,062.88
  4. Step 4: Simplify right side
    5,420.70x = 22,911,138.75
  5. Step 5: Solve for x
    x = 22,911,138.75/5,420.70
  6. Step 6: Final answer
    x = 4,226.60

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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.