Home / 4,982.15-6,875.51-2,857.88

Finding the Fourth Proportional to 4,982.15, 6,875.51 and 2,857.88

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Solution

The fourth proportional to 4,982.15, 6,875.51 and 2,857.88 is: 3,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.15 : 6,875.51 = 2,857.88 : x
  2. Step 2: Convert to fraction form
    4,982.15/6,875.51 = 2,857.88/x
  3. Step 3: Cross multiply
    4,982.15x = 6,875.51 × 2,857.88
  4. Step 4: Simplify right side
    4,982.15x = 19,649,382.52
  5. Step 5: Solve for x
    x = 19,649,382.52/4,982.15
  6. Step 6: Final answer
    x = 3,943.96

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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.