Home / 5,076.16-7,002.18-2,979.88

Finding the Fourth Proportional to 5,076.16, 7,002.18 and 2,979.88

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Solution

The fourth proportional to 5,076.16, 7,002.18 and 2,979.88 is: 4,110.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.16 : 7,002.18 = 2,979.88 : x
  2. Step 2: Convert to fraction form
    5,076.16/7,002.18 = 2,979.88/x
  3. Step 3: Cross multiply
    5,076.16x = 7,002.18 × 2,979.88
  4. Step 4: Simplify right side
    5,076.16x = 20,865,656.14
  5. Step 5: Solve for x
    x = 20,865,656.14/5,076.16
  6. Step 6: Final answer
    x = 4,110.52

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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.