Home / 3,861.24-5,326.86-2,289.06

Finding the Fourth Proportional to 3,861.24, 5,326.86 and 2,289.06

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Solution

The fourth proportional to 3,861.24, 5,326.86 and 2,289.06 is: 3,157.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.24 : 5,326.86 = 2,289.06 : x
  2. Step 2: Convert to fraction form
    3,861.24/5,326.86 = 2,289.06/x
  3. Step 3: Cross multiply
    3,861.24x = 5,326.86 × 2,289.06
  4. Step 4: Simplify right side
    3,861.24x = 12,193,502.15
  5. Step 5: Solve for x
    x = 12,193,502.15/3,861.24
  6. Step 6: Final answer
    x = 3,157.92

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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.