Home / 4,971.92-6,860.85-2,876.18

Finding the Fourth Proportional to 4,971.92, 6,860.85 and 2,876.18

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Solution

The fourth proportional to 4,971.92, 6,860.85 and 2,876.18 is: 3,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.92 : 6,860.85 = 2,876.18 : x
  2. Step 2: Convert to fraction form
    4,971.92/6,860.85 = 2,876.18/x
  3. Step 3: Cross multiply
    4,971.92x = 6,860.85 × 2,876.18
  4. Step 4: Simplify right side
    4,971.92x = 19,733,039.55
  5. Step 5: Solve for x
    x = 19,733,039.55/4,971.92
  6. Step 6: Final answer
    x = 3,968.90

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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.