Home / 5,278.97-7,285.76-3,040.42

Finding the Fourth Proportional to 5,278.97, 7,285.76 and 3,040.42

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Solution

The fourth proportional to 5,278.97, 7,285.76 and 3,040.42 is: 4,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.97 : 7,285.76 = 3,040.42 : x
  2. Step 2: Convert to fraction form
    5,278.97/7,285.76 = 3,040.42/x
  3. Step 3: Cross multiply
    5,278.97x = 7,285.76 × 3,040.42
  4. Step 4: Simplify right side
    5,278.97x = 22,151,737.00
  5. Step 5: Solve for x
    x = 22,151,737.00/5,278.97
  6. Step 6: Final answer
    x = 4,196.22

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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.