Home / 6,081.40-8,391.90-3,428.79

Finding the Fourth Proportional to 6,081.40, 8,391.90 and 3,428.79

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Solution

The fourth proportional to 6,081.40, 8,391.90 and 3,428.79 is: 4,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,081.40 : 8,391.90 = 3,428.79 : x
  2. Step 2: Convert to fraction form
    6,081.40/8,391.90 = 3,428.79/x
  3. Step 3: Cross multiply
    6,081.40x = 8,391.90 × 3,428.79
  4. Step 4: Simplify right side
    6,081.40x = 28,774,062.80
  5. Step 5: Solve for x
    x = 28,774,062.80/6,081.40
  6. Step 6: Final answer
    x = 4,731.49

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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.