Home / 3,236.40-4,479.06-3,158.76

Finding the Fourth Proportional to 3,236.40, 4,479.06 and 3,158.76

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Solution

The fourth proportional to 3,236.40, 4,479.06 and 3,158.76 is: 4,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.40 : 4,479.06 = 3,158.76 : x
  2. Step 2: Convert to fraction form
    3,236.40/4,479.06 = 3,158.76/x
  3. Step 3: Cross multiply
    3,236.40x = 4,479.06 × 3,158.76
  4. Step 4: Simplify right side
    3,236.40x = 14,148,275.57
  5. Step 5: Solve for x
    x = 14,148,275.57/3,236.40
  6. Step 6: Final answer
    x = 4,371.61

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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.