Home / 3,710.43-5,120.40-2,008.95

Finding the Fourth Proportional to 3,710.43, 5,120.40 and 2,008.95

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Solution

The fourth proportional to 3,710.43, 5,120.40 and 2,008.95 is: 2,772.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.43 : 5,120.40 = 2,008.95 : x
  2. Step 2: Convert to fraction form
    3,710.43/5,120.40 = 2,008.95/x
  3. Step 3: Cross multiply
    3,710.43x = 5,120.40 × 2,008.95
  4. Step 4: Simplify right side
    3,710.43x = 10,286,645.40
  5. Step 5: Solve for x
    x = 10,286,645.40/3,710.43
  6. Step 6: Final answer
    x = 2,772.36

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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.