Home / 3,581.57-5,371.65-1,802.15

Finding the Fourth Proportional to 3,581.57, 5,371.65 and 1,802.15

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Solution

The fourth proportional to 3,581.57, 5,371.65 and 1,802.15 is: 2,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.57 : 5,371.65 = 1,802.15 : x
  2. Step 2: Convert to fraction form
    3,581.57/5,371.65 = 1,802.15/x
  3. Step 3: Cross multiply
    3,581.57x = 5,371.65 × 1,802.15
  4. Step 4: Simplify right side
    3,581.57x = 9,680,519.05
  5. Step 5: Solve for x
    x = 9,680,519.05/3,581.57
  6. Step 6: Final answer
    x = 2,702.87

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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.