Home / 3,236.39-4,479.05-3,158.75

Finding the Fourth Proportional to 3,236.39, 4,479.05 and 3,158.75

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Solution

The fourth proportional to 3,236.39, 4,479.05 and 3,158.75 is: 4,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,236.39 : 4,479.05 = 3,158.75 : x
  2. Step 2: Convert to fraction form
    3,236.39/4,479.05 = 3,158.75/x
  3. Step 3: Cross multiply
    3,236.39x = 4,479.05 × 3,158.75
  4. Step 4: Simplify right side
    3,236.39x = 14,148,199.19
  5. Step 5: Solve for x
    x = 14,148,199.19/3,236.39
  6. Step 6: Final answer
    x = 4,371.60

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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.