Home / 7,913.30-11,869.34-2,719.17

Finding the Fourth Proportional to 7,913.30, 11,869.34 and 2,719.17

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Solution

The fourth proportional to 7,913.30, 11,869.34 and 2,719.17 is: 4,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.30 : 11,869.34 = 2,719.17 : x
  2. Step 2: Convert to fraction form
    7,913.30/11,869.34 = 2,719.17/x
  3. Step 3: Cross multiply
    7,913.30x = 11,869.34 × 2,719.17
  4. Step 4: Simplify right side
    7,913.30x = 32,274,739.65
  5. Step 5: Solve for x
    x = 32,274,739.65/7,913.30
  6. Step 6: Final answer
    x = 4,078.55

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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.