Home / 3,965.19-5,472-2,196.87

Finding the Fourth Proportional to 3,965.19, 5,472 and 2,196.87

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Solution

The fourth proportional to 3,965.19, 5,472 and 2,196.87 is: 3,031.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.19 : 5,472 = 2,196.87 : x
  2. Step 2: Convert to fraction form
    3,965.19/5,472 = 2,196.87/x
  3. Step 3: Cross multiply
    3,965.19x = 5,472 × 2,196.87
  4. Step 4: Simplify right side
    3,965.19x = 12,021,272.64
  5. Step 5: Solve for x
    x = 12,021,272.64/3,965.19
  6. Step 6: Final answer
    x = 3,031.70

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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.