Home / 3,387.65-5,081.15-2,800.35

Finding the Fourth Proportional to 3,387.65, 5,081.15 and 2,800.35

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Solution

The fourth proportional to 3,387.65, 5,081.15 and 2,800.35 is: 4,200.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.65 : 5,081.15 = 2,800.35 : x
  2. Step 2: Convert to fraction form
    3,387.65/5,081.15 = 2,800.35/x
  3. Step 3: Cross multiply
    3,387.65x = 5,081.15 × 2,800.35
  4. Step 4: Simplify right side
    3,387.65x = 14,229,005.40
  5. Step 5: Solve for x
    x = 14,229,005.40/3,387.65
  6. Step 6: Final answer
    x = 4,200.26

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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.