Home / 3,148.30-4,722.45-1,199.71

Finding the Fourth Proportional to 3,148.30, 4,722.45 and 1,199.71

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Solution

The fourth proportional to 3,148.30, 4,722.45 and 1,199.71 is: 1,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.30 : 4,722.45 = 1,199.71 : x
  2. Step 2: Convert to fraction form
    3,148.30/4,722.45 = 1,199.71/x
  3. Step 3: Cross multiply
    3,148.30x = 4,722.45 × 1,199.71
  4. Step 4: Simplify right side
    3,148.30x = 5,665,570.49
  5. Step 5: Solve for x
    x = 5,665,570.49/3,148.30
  6. Step 6: Final answer
    x = 1,799.57

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Similar ratio
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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.