Home / 3,950.47-5,451.69-2,182.12

Finding the Fourth Proportional to 3,950.47, 5,451.69 and 2,182.12

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Solution

The fourth proportional to 3,950.47, 5,451.69 and 2,182.12 is: 3,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.47 : 5,451.69 = 2,182.12 : x
  2. Step 2: Convert to fraction form
    3,950.47/5,451.69 = 2,182.12/x
  3. Step 3: Cross multiply
    3,950.47x = 5,451.69 × 2,182.12
  4. Step 4: Simplify right side
    3,950.47x = 11,896,241.78
  5. Step 5: Solve for x
    x = 11,896,241.78/3,950.47
  6. Step 6: Final answer
    x = 3,011.35

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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.