Home / 5,278.48-7,285.07-3,039.92

Finding the Fourth Proportional to 5,278.48, 7,285.07 and 3,039.92

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Solution

The fourth proportional to 5,278.48, 7,285.07 and 3,039.92 is: 4,195.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.48 : 7,285.07 = 3,039.92 : x
  2. Step 2: Convert to fraction form
    5,278.48/7,285.07 = 3,039.92/x
  3. Step 3: Cross multiply
    5,278.48x = 7,285.07 × 3,039.92
  4. Step 4: Simplify right side
    5,278.48x = 22,145,985.97
  5. Step 5: Solve for x
    x = 22,145,985.97/5,278.48
  6. Step 6: Final answer
    x = 4,195.53

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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.