Home / 4,982.10-6,874.25-2,857.47

Finding the Fourth Proportional to 4,982.10, 6,874.25 and 2,857.47

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Solution

The fourth proportional to 4,982.10, 6,874.25 and 2,857.47 is: 3,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.10 : 6,874.25 = 2,857.47 : x
  2. Step 2: Convert to fraction form
    4,982.10/6,874.25 = 2,857.47/x
  3. Step 3: Cross multiply
    4,982.10x = 6,874.25 × 2,857.47
  4. Step 4: Simplify right side
    4,982.10x = 19,642,948.86
  5. Step 5: Solve for x
    x = 19,642,948.86/4,982.10
  6. Step 6: Final answer
    x = 3,942.70

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1.5x scale

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.