Home / 7,278.75-10,044.68-3,966.75

Finding the Fourth Proportional to 7,278.75, 10,044.68 and 3,966.75

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Solution

The fourth proportional to 7,278.75, 10,044.68 and 3,966.75 is: 5,474.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.75 : 10,044.68 = 3,966.75 : x
  2. Step 2: Convert to fraction form
    7,278.75/10,044.68 = 3,966.75/x
  3. Step 3: Cross multiply
    7,278.75x = 10,044.68 × 3,966.75
  4. Step 4: Simplify right side
    7,278.75x = 39,844,714.56
  5. Step 5: Solve for x
    x = 39,844,714.56/7,278.75
  6. Step 6: Final answer
    x = 5,474.12

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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.