Home / 7,882.90-11,821.28-3,441.93

Finding the Fourth Proportional to 7,882.90, 11,821.28 and 3,441.93

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Solution

The fourth proportional to 7,882.90, 11,821.28 and 3,441.93 is: 5,161.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.90 : 11,821.28 = 3,441.93 : x
  2. Step 2: Convert to fraction form
    7,882.90/11,821.28 = 3,441.93/x
  3. Step 3: Cross multiply
    7,882.90x = 11,821.28 × 3,441.93
  4. Step 4: Simplify right side
    7,882.90x = 40,688,018.27
  5. Step 5: Solve for x
    x = 40,688,018.27/7,882.90
  6. Step 6: Final answer
    x = 5,161.55

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1.5x scale

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.