Home / 3,861.45-5,329.36-2,445.26

Finding the Fourth Proportional to 3,861.45, 5,329.36 and 2,445.26

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Solution

The fourth proportional to 3,861.45, 5,329.36 and 2,445.26 is: 3,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.45 : 5,329.36 = 2,445.26 : x
  2. Step 2: Convert to fraction form
    3,861.45/5,329.36 = 2,445.26/x
  3. Step 3: Cross multiply
    3,861.45x = 5,329.36 × 2,445.26
  4. Step 4: Simplify right side
    3,861.45x = 13,031,693.33
  5. Step 5: Solve for x
    x = 13,031,693.33/3,861.45
  6. Step 6: Final answer
    x = 3,374.82

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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.