Home / 5,276.78-7,916.42-2,811.10

Finding the Fourth Proportional to 5,276.78, 7,916.42 and 2,811.10

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Solution

The fourth proportional to 5,276.78, 7,916.42 and 2,811.10 is: 4,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.78 : 7,916.42 = 2,811.10 : x
  2. Step 2: Convert to fraction form
    5,276.78/7,916.42 = 2,811.10/x
  3. Step 3: Cross multiply
    5,276.78x = 7,916.42 × 2,811.10
  4. Step 4: Simplify right side
    5,276.78x = 22,253,848.26
  5. Step 5: Solve for x
    x = 22,253,848.26/5,276.78
  6. Step 6: Final answer
    x = 4,217.32

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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.