Home / 7,916.30-11,874.45-3,298.70

Finding the Fourth Proportional to 7,916.30, 11,874.45 and 3,298.70

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Solution

The fourth proportional to 7,916.30, 11,874.45 and 3,298.70 is: 4,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.30 : 11,874.45 = 3,298.70 : x
  2. Step 2: Convert to fraction form
    7,916.30/11,874.45 = 3,298.70/x
  3. Step 3: Cross multiply
    7,916.30x = 11,874.45 × 3,298.70
  4. Step 4: Simplify right side
    7,916.30x = 39,170,248.22
  5. Step 5: Solve for x
    x = 39,170,248.22/7,916.30
  6. Step 6: Final answer
    x = 4,948.05

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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.