Home / 3,864.78-5,332.10-2,186.02

Finding the Fourth Proportional to 3,864.78, 5,332.10 and 2,186.02

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Solution

The fourth proportional to 3,864.78, 5,332.10 and 2,186.02 is: 3,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.78 : 5,332.10 = 2,186.02 : x
  2. Step 2: Convert to fraction form
    3,864.78/5,332.10 = 2,186.02/x
  3. Step 3: Cross multiply
    3,864.78x = 5,332.10 × 2,186.02
  4. Step 4: Simplify right side
    3,864.78x = 11,656,077.24
  5. Step 5: Solve for x
    x = 11,656,077.24/3,864.78
  6. Step 6: Final answer
    x = 3,015.97

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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.