Home / 8,705.19-13,057.35-2,861.85

Finding the Fourth Proportional to 8,705.19, 13,057.35 and 2,861.85

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Solution

The fourth proportional to 8,705.19, 13,057.35 and 2,861.85 is: 4,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.19 : 13,057.35 = 2,861.85 : x
  2. Step 2: Convert to fraction form
    8,705.19/13,057.35 = 2,861.85/x
  3. Step 3: Cross multiply
    8,705.19x = 13,057.35 × 2,861.85
  4. Step 4: Simplify right side
    8,705.19x = 37,368,177.10
  5. Step 5: Solve for x
    x = 37,368,177.10/8,705.19
  6. Step 6: Final answer
    x = 4,292.63

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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.