Home / 3,712.32-5,123.52-2,315.52

Finding the Fourth Proportional to 3,712.32, 5,123.52 and 2,315.52

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Solution

The fourth proportional to 3,712.32, 5,123.52 and 2,315.52 is: 3,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.32 : 5,123.52 = 2,315.52 : x
  2. Step 2: Convert to fraction form
    3,712.32/5,123.52 = 2,315.52/x
  3. Step 3: Cross multiply
    3,712.32x = 5,123.52 × 2,315.52
  4. Step 4: Simplify right side
    3,712.32x = 11,863,613.03
  5. Step 5: Solve for x
    x = 11,863,613.03/3,712.32
  6. Step 6: Final answer
    x = 3,195.74

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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.