Home / 3,426.66-5,139.27-961.74

Finding the Fourth Proportional to 3,426.66, 5,139.27 and 961.74

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Solution

The fourth proportional to 3,426.66, 5,139.27 and 961.74 is: 1,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.66 : 5,139.27 = 961.74 : x
  2. Step 2: Convert to fraction form
    3,426.66/5,139.27 = 961.74/x
  3. Step 3: Cross multiply
    3,426.66x = 5,139.27 × 961.74
  4. Step 4: Simplify right side
    3,426.66x = 4,942,641.53
  5. Step 5: Solve for x
    x = 4,942,641.53/3,426.66
  6. Step 6: Final answer
    x = 1,442.41

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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.