Home / 3,853.61-5,318.15-2,436.79

Finding the Fourth Proportional to 3,853.61, 5,318.15 and 2,436.79

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Solution

The fourth proportional to 3,853.61, 5,318.15 and 2,436.79 is: 3,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.61 : 5,318.15 = 2,436.79 : x
  2. Step 2: Convert to fraction form
    3,853.61/5,318.15 = 2,436.79/x
  3. Step 3: Cross multiply
    3,853.61x = 5,318.15 × 2,436.79
  4. Step 4: Simplify right side
    3,853.61x = 12,959,189.26
  5. Step 5: Solve for x
    x = 12,959,189.26/3,853.61
  6. Step 6: Final answer
    x = 3,362.87

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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.