Home / 2,719.40-3,752.96-1,540.58

Finding the Fourth Proportional to 2,719.40, 3,752.96 and 1,540.58

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Solution

The fourth proportional to 2,719.40, 3,752.96 and 1,540.58 is: 2,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.40 : 3,752.96 = 1,540.58 : x
  2. Step 2: Convert to fraction form
    2,719.40/3,752.96 = 1,540.58/x
  3. Step 3: Cross multiply
    2,719.40x = 3,752.96 × 1,540.58
  4. Step 4: Simplify right side
    2,719.40x = 5,781,708.65
  5. Step 5: Solve for x
    x = 5,781,708.65/2,719.40
  6. Step 6: Final answer
    x = 2,126.10

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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.