Home / 3,861.31-5,328.61-2,092.91

Finding the Fourth Proportional to 3,861.31, 5,328.61 and 2,092.91

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Solution

The fourth proportional to 3,861.31, 5,328.61 and 2,092.91 is: 2,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.31 : 5,328.61 = 2,092.91 : x
  2. Step 2: Convert to fraction form
    3,861.31/5,328.61 = 2,092.91/x
  3. Step 3: Cross multiply
    3,861.31x = 5,328.61 × 2,092.91
  4. Step 4: Simplify right side
    3,861.31x = 11,152,309.24
  5. Step 5: Solve for x
    x = 11,152,309.24/3,861.31
  6. Step 6: Final answer
    x = 2,888.22

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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.