Home / 7,898.19-11,842.43-3,389.87

Finding the Fourth Proportional to 7,898.19, 11,842.43 and 3,389.87

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Solution

The fourth proportional to 7,898.19, 11,842.43 and 3,389.87 is: 5,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.19 : 11,842.43 = 3,389.87 : x
  2. Step 2: Convert to fraction form
    7,898.19/11,842.43 = 3,389.87/x
  3. Step 3: Cross multiply
    7,898.19x = 11,842.43 × 3,389.87
  4. Step 4: Simplify right side
    7,898.19x = 40,144,222.02
  5. Step 5: Solve for x
    x = 40,144,222.02/7,898.19
  6. Step 6: Final answer
    x = 5,082.71

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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.