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Finding the Fourth Proportional to 3,866.72, 5,334.19 and 2,293.70

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Solution

The fourth proportional to 3,866.72, 5,334.19 and 2,293.70 is: 3,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.72 : 5,334.19 = 2,293.70 : x
  2. Step 2: Convert to fraction form
    3,866.72/5,334.19 = 2,293.70/x
  3. Step 3: Cross multiply
    3,866.72x = 5,334.19 × 2,293.70
  4. Step 4: Simplify right side
    3,866.72x = 12,234,999.20
  5. Step 5: Solve for x
    x = 12,234,999.20/3,866.72
  6. Step 6: Final answer
    x = 3,164.18

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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.