Home / 6,081.21-8,387.78-5,877.99

Finding the Fourth Proportional to 6,081.21, 8,387.78 and 5,877.99

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Solution

The fourth proportional to 6,081.21, 8,387.78 and 5,877.99 is: 8,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.21 : 8,387.78 = 5,877.99 : x
  2. Step 2: Convert to fraction form
    6,081.21/8,387.78 = 5,877.99/x
  3. Step 3: Cross multiply
    6,081.21x = 8,387.78 × 5,877.99
  4. Step 4: Simplify right side
    6,081.21x = 49,303,257.57
  5. Step 5: Solve for x
    x = 49,303,257.57/6,081.21
  6. Step 6: Final answer
    x = 8,107.47

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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.