Home / 3,451.90-5,178.61-1,260.62

Finding the Fourth Proportional to 3,451.90, 5,178.61 and 1,260.62

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Solution

The fourth proportional to 3,451.90, 5,178.61 and 1,260.62 is: 1,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.90 : 5,178.61 = 1,260.62 : x
  2. Step 2: Convert to fraction form
    3,451.90/5,178.61 = 1,260.62/x
  3. Step 3: Cross multiply
    3,451.90x = 5,178.61 × 1,260.62
  4. Step 4: Simplify right side
    3,451.90x = 6,528,253.04
  5. Step 5: Solve for x
    x = 6,528,253.04/3,451.90
  6. Step 6: Final answer
    x = 1,891.21

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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.