Home / 7,869.29-11,800.89-2,937.87

Finding the Fourth Proportional to 7,869.29, 11,800.89 and 2,937.87

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Solution

The fourth proportional to 7,869.29, 11,800.89 and 2,937.87 is: 4,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.29 : 11,800.89 = 2,937.87 : x
  2. Step 2: Convert to fraction form
    7,869.29/11,800.89 = 2,937.87/x
  3. Step 3: Cross multiply
    7,869.29x = 11,800.89 × 2,937.87
  4. Step 4: Simplify right side
    7,869.29x = 34,669,480.70
  5. Step 5: Solve for x
    x = 34,669,480.70/7,869.29
  6. Step 6: Final answer
    x = 4,405.67

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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.