Home / 2,839.64-4,261.07-1,108.40

Finding the Fourth Proportional to 2,839.64, 4,261.07 and 1,108.40

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Solution

The fourth proportional to 2,839.64, 4,261.07 and 1,108.40 is: 1,663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.64 : 4,261.07 = 1,108.40 : x
  2. Step 2: Convert to fraction form
    2,839.64/4,261.07 = 1,108.40/x
  3. Step 3: Cross multiply
    2,839.64x = 4,261.07 × 1,108.40
  4. Step 4: Simplify right side
    2,839.64x = 4,722,951.45
  5. Step 5: Solve for x
    x = 4,722,951.45/2,839.64
  6. Step 6: Final answer
    x = 1,663.22

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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.