Home / 5,420.49-7,480.31-3,062.85

Finding the Fourth Proportional to 5,420.49, 7,480.31 and 3,062.85

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Solution

The fourth proportional to 5,420.49, 7,480.31 and 3,062.85 is: 4,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.49 : 7,480.31 = 3,062.85 : x
  2. Step 2: Convert to fraction form
    5,420.49/7,480.31 = 3,062.85/x
  3. Step 3: Cross multiply
    5,420.49x = 7,480.31 × 3,062.85
  4. Step 4: Simplify right side
    5,420.49x = 22,911,052.17
  5. Step 5: Solve for x
    x = 22,911,052.17/5,420.49
  6. Step 6: Final answer
    x = 4,226.75

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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.