Home / 3,680.52-5,079.36-2,108.64

Finding the Fourth Proportional to 3,680.52, 5,079.36 and 2,108.64

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Solution

The fourth proportional to 3,680.52, 5,079.36 and 2,108.64 is: 2,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.52 : 5,079.36 = 2,108.64 : x
  2. Step 2: Convert to fraction form
    3,680.52/5,079.36 = 2,108.64/x
  3. Step 3: Cross multiply
    3,680.52x = 5,079.36 × 2,108.64
  4. Step 4: Simplify right side
    3,680.52x = 10,710,541.67
  5. Step 5: Solve for x
    x = 10,710,541.67/3,680.52
  6. Step 6: Final answer
    x = 2,910.06

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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.