Home / 3,965.45-5,948.28-2,221.61

Finding the Fourth Proportional to 3,965.45, 5,948.28 and 2,221.61

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Solution

The fourth proportional to 3,965.45, 5,948.28 and 2,221.61 is: 3,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.45 : 5,948.28 = 2,221.61 : x
  2. Step 2: Convert to fraction form
    3,965.45/5,948.28 = 2,221.61/x
  3. Step 3: Cross multiply
    3,965.45x = 5,948.28 × 2,221.61
  4. Step 4: Simplify right side
    3,965.45x = 13,214,728.59
  5. Step 5: Solve for x
    x = 13,214,728.59/3,965.45
  6. Step 6: Final answer
    x = 3,332.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.