Home / 6,509.19-8,981.33-4,119.90

Finding the Fourth Proportional to 6,509.19, 8,981.33 and 4,119.90

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Solution

The fourth proportional to 6,509.19, 8,981.33 and 4,119.90 is: 5,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,509.19 : 8,981.33 = 4,119.90 : x
  2. Step 2: Convert to fraction form
    6,509.19/8,981.33 = 4,119.90/x
  3. Step 3: Cross multiply
    6,509.19x = 8,981.33 × 4,119.90
  4. Step 4: Simplify right side
    6,509.19x = 37,002,160.87
  5. Step 5: Solve for x
    x = 37,002,160.87/6,509.19
  6. Step 6: Final answer
    x = 5,684.60

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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.