Home / 2,233.90-3,081.36-1,761.28

Finding the Fourth Proportional to 2,233.90, 3,081.36 and 1,761.28

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Solution

The fourth proportional to 2,233.90, 3,081.36 and 1,761.28 is: 2,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.90 : 3,081.36 = 1,761.28 : x
  2. Step 2: Convert to fraction form
    2,233.90/3,081.36 = 1,761.28/x
  3. Step 3: Cross multiply
    2,233.90x = 3,081.36 × 1,761.28
  4. Step 4: Simplify right side
    2,233.90x = 5,427,137.74
  5. Step 5: Solve for x
    x = 5,427,137.74/2,233.90
  6. Step 6: Final answer
    x = 2,429.45

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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.