Home / 7,355.91-10,150.87-3,998.65

Finding the Fourth Proportional to 7,355.91, 10,150.87 and 3,998.65

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Solution

The fourth proportional to 7,355.91, 10,150.87 and 3,998.65 is: 5,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.91 : 10,150.87 = 3,998.65 : x
  2. Step 2: Convert to fraction form
    7,355.91/10,150.87 = 3,998.65/x
  3. Step 3: Cross multiply
    7,355.91x = 10,150.87 × 3,998.65
  4. Step 4: Simplify right side
    7,355.91x = 40,589,810.31
  5. Step 5: Solve for x
    x = 40,589,810.31/7,355.91
  6. Step 6: Final answer
    x = 5,517.98

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1.5x scale

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.