Home / 2,719.38-3,752.93-1,540.45

Finding the Fourth Proportional to 2,719.38, 3,752.93 and 1,540.45

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Solution

The fourth proportional to 2,719.38, 3,752.93 and 1,540.45 is: 2,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.38 : 3,752.93 = 1,540.45 : x
  2. Step 2: Convert to fraction form
    2,719.38/3,752.93 = 1,540.45/x
  3. Step 3: Cross multiply
    2,719.38x = 3,752.93 × 1,540.45
  4. Step 4: Simplify right side
    2,719.38x = 5,781,201.02
  5. Step 5: Solve for x
    x = 5,781,201.02/2,719.38
  6. Step 6: Final answer
    x = 2,125.93

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1.5x scale

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.