Home / 3,882.22-5,357-2,287.66

Finding the Fourth Proportional to 3,882.22, 5,357 and 2,287.66

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Solution

The fourth proportional to 3,882.22, 5,357 and 2,287.66 is: 3,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.22 : 5,357 = 2,287.66 : x
  2. Step 2: Convert to fraction form
    3,882.22/5,357 = 2,287.66/x
  3. Step 3: Cross multiply
    3,882.22x = 5,357 × 2,287.66
  4. Step 4: Simplify right side
    3,882.22x = 12,254,994.62
  5. Step 5: Solve for x
    x = 12,254,994.62/3,882.22
  6. Step 6: Final answer
    x = 3,156.70

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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.