Home / 5,409.75-8,117.87-2,331.75

Finding the Fourth Proportional to 5,409.75, 8,117.87 and 2,331.75

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Solution

The fourth proportional to 5,409.75, 8,117.87 and 2,331.75 is: 3,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.75 : 8,117.87 = 2,331.75 : x
  2. Step 2: Convert to fraction form
    5,409.75/8,117.87 = 2,331.75/x
  3. Step 3: Cross multiply
    5,409.75x = 8,117.87 × 2,331.75
  4. Step 4: Simplify right side
    5,409.75x = 18,928,831.71
  5. Step 5: Solve for x
    x = 18,928,831.71/5,409.75
  6. Step 6: Final answer
    x = 3,499.02

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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.