Home / 3,847.47-5,306.86-2,356.12

Finding the Fourth Proportional to 3,847.47, 5,306.86 and 2,356.12

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Solution

The fourth proportional to 3,847.47, 5,306.86 and 2,356.12 is: 3,249.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847.47 : 5,306.86 = 2,356.12 : x
  2. Step 2: Convert to fraction form
    3,847.47/5,306.86 = 2,356.12/x
  3. Step 3: Cross multiply
    3,847.47x = 5,306.86 × 2,356.12
  4. Step 4: Simplify right side
    3,847.47x = 12,503,587.20
  5. Step 5: Solve for x
    x = 12,503,587.20/3,847.47
  6. Step 6: Final answer
    x = 3,249.82

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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.