Home / 4,972.84-6,861.76-2,876.56

Finding the Fourth Proportional to 4,972.84, 6,861.76 and 2,876.56

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Solution

The fourth proportional to 4,972.84, 6,861.76 and 2,876.56 is: 3,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.84 : 6,861.76 = 2,876.56 : x
  2. Step 2: Convert to fraction form
    4,972.84/6,861.76 = 2,876.56/x
  3. Step 3: Cross multiply
    4,972.84x = 6,861.76 × 2,876.56
  4. Step 4: Simplify right side
    4,972.84x = 19,738,264.35
  5. Step 5: Solve for x
    x = 19,738,264.35/4,972.84
  6. Step 6: Final answer
    x = 3,969.21

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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.