Home / 2,719.48-3,752.85-1,540.78

Finding the Fourth Proportional to 2,719.48, 3,752.85 and 1,540.78

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Solution

The fourth proportional to 2,719.48, 3,752.85 and 1,540.78 is: 2,126.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.48 : 3,752.85 = 1,540.78 : x
  2. Step 2: Convert to fraction form
    2,719.48/3,752.85 = 1,540.78/x
  3. Step 3: Cross multiply
    2,719.48x = 3,752.85 × 1,540.78
  4. Step 4: Simplify right side
    2,719.48x = 5,782,316.22
  5. Step 5: Solve for x
    x = 5,782,316.22/2,719.48
  6. Step 6: Final answer
    x = 2,126.26

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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.