Home / 3,438.24-5,155.76-1,246.88

Finding the Fourth Proportional to 3,438.24, 5,155.76 and 1,246.88

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Solution

The fourth proportional to 3,438.24, 5,155.76 and 1,246.88 is: 1,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.24 : 5,155.76 = 1,246.88 : x
  2. Step 2: Convert to fraction form
    3,438.24/5,155.76 = 1,246.88/x
  3. Step 3: Cross multiply
    3,438.24x = 5,155.76 × 1,246.88
  4. Step 4: Simplify right side
    3,438.24x = 6,428,614.03
  5. Step 5: Solve for x
    x = 6,428,614.03/3,438.24
  6. Step 6: Final answer
    x = 1,869.74

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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.