Home / 4,871.14-6,722.16-2,775.28

Finding the Fourth Proportional to 4,871.14, 6,722.16 and 2,775.28

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Solution

The fourth proportional to 4,871.14, 6,722.16 and 2,775.28 is: 3,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.14 : 6,722.16 = 2,775.28 : x
  2. Step 2: Convert to fraction form
    4,871.14/6,722.16 = 2,775.28/x
  3. Step 3: Cross multiply
    4,871.14x = 6,722.16 × 2,775.28
  4. Step 4: Simplify right side
    4,871.14x = 18,655,876.20
  5. Step 5: Solve for x
    x = 18,655,876.20/4,871.14
  6. Step 6: Final answer
    x = 3,829.88

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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.