Home / 7,767.83-10,719.68-4,231.04

Finding the Fourth Proportional to 7,767.83, 10,719.68 and 4,231.04

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Solution

The fourth proportional to 7,767.83, 10,719.68 and 4,231.04 is: 5,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.83 : 10,719.68 = 4,231.04 : x
  2. Step 2: Convert to fraction form
    7,767.83/10,719.68 = 4,231.04/x
  3. Step 3: Cross multiply
    7,767.83x = 10,719.68 × 4,231.04
  4. Step 4: Simplify right side
    7,767.83x = 45,355,320.11
  5. Step 5: Solve for x
    x = 45,355,320.11/7,767.83
  6. Step 6: Final answer
    x = 5,838.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.