Home / 3,719.70-5,127.57-2,320.02

Finding the Fourth Proportional to 3,719.70, 5,127.57 and 2,320.02

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Solution

The fourth proportional to 3,719.70, 5,127.57 and 2,320.02 is: 3,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.70 : 5,127.57 = 2,320.02 : x
  2. Step 2: Convert to fraction form
    3,719.70/5,127.57 = 2,320.02/x
  3. Step 3: Cross multiply
    3,719.70x = 5,127.57 × 2,320.02
  4. Step 4: Simplify right side
    3,719.70x = 11,896,064.95
  5. Step 5: Solve for x
    x = 11,896,064.95/3,719.70
  6. Step 6: Final answer
    x = 3,198.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.