Home / 2,279.25-3,420.56-1,760.55

Finding the Fourth Proportional to 2,279.25, 3,420.56 and 1,760.55

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Solution

The fourth proportional to 2,279.25, 3,420.56 and 1,760.55 is: 2,642.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.25 : 3,420.56 = 1,760.55 : x
  2. Step 2: Convert to fraction form
    2,279.25/3,420.56 = 1,760.55/x
  3. Step 3: Cross multiply
    2,279.25x = 3,420.56 × 1,760.55
  4. Step 4: Simplify right side
    2,279.25x = 6,022,058.11
  5. Step 5: Solve for x
    x = 6,022,058.11/2,279.25
  6. Step 6: Final answer
    x = 2,642.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.