Home / 3,719.68-5,581.10-1,869.82

Finding the Fourth Proportional to 3,719.68, 5,581.10 and 1,869.82

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Solution

The fourth proportional to 3,719.68, 5,581.10 and 1,869.82 is: 2,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.68 : 5,581.10 = 1,869.82 : x
  2. Step 2: Convert to fraction form
    3,719.68/5,581.10 = 1,869.82/x
  3. Step 3: Cross multiply
    3,719.68x = 5,581.10 × 1,869.82
  4. Step 4: Simplify right side
    3,719.68x = 10,435,652.40
  5. Step 5: Solve for x
    x = 10,435,652.40/3,719.68
  6. Step 6: Final answer
    x = 2,805.52

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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.