Home / 3,720.88-5,582.31-1,869.76

Finding the Fourth Proportional to 3,720.88, 5,582.31 and 1,869.76

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Solution

The fourth proportional to 3,720.88, 5,582.31 and 1,869.76 is: 2,805.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.88 : 5,582.31 = 1,869.76 : x
  2. Step 2: Convert to fraction form
    3,720.88/5,582.31 = 1,869.76/x
  3. Step 3: Cross multiply
    3,720.88x = 5,582.31 × 1,869.76
  4. Step 4: Simplify right side
    3,720.88x = 10,437,579.95
  5. Step 5: Solve for x
    x = 10,437,579.95/3,720.88
  6. Step 6: Final answer
    x = 2,805.14

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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.