Home / 4,876.47-7,318.89-1,956.78

Finding the Fourth Proportional to 4,876.47, 7,318.89 and 1,956.78

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Solution

The fourth proportional to 4,876.47, 7,318.89 and 1,956.78 is: 2,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.47 : 7,318.89 = 1,956.78 : x
  2. Step 2: Convert to fraction form
    4,876.47/7,318.89 = 1,956.78/x
  3. Step 3: Cross multiply
    4,876.47x = 7,318.89 × 1,956.78
  4. Step 4: Simplify right side
    4,876.47x = 14,321,457.57
  5. Step 5: Solve for x
    x = 14,321,457.57/4,876.47
  6. Step 6: Final answer
    x = 2,936.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.