Home / 2,719.46-3,752.84-1,540.64

Finding the Fourth Proportional to 2,719.46, 3,752.84 and 1,540.64

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Solution

The fourth proportional to 2,719.46, 3,752.84 and 1,540.64 is: 2,126.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.46 : 3,752.84 = 1,540.64 : x
  2. Step 2: Convert to fraction form
    2,719.46/3,752.84 = 1,540.64/x
  3. Step 3: Cross multiply
    2,719.46x = 3,752.84 × 1,540.64
  4. Step 4: Simplify right side
    2,719.46x = 5,781,748.95
  5. Step 5: Solve for x
    x = 5,781,748.95/2,719.46
  6. Step 6: Final answer
    x = 2,126.07

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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.