Home / 4,086.49-5,638.17-2,318.08

Finding the Fourth Proportional to 4,086.49, 5,638.17 and 2,318.08

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Solution

The fourth proportional to 4,086.49, 5,638.17 and 2,318.08 is: 3,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.49 : 5,638.17 = 2,318.08 : x
  2. Step 2: Convert to fraction form
    4,086.49/5,638.17 = 2,318.08/x
  3. Step 3: Cross multiply
    4,086.49x = 5,638.17 × 2,318.08
  4. Step 4: Simplify right side
    4,086.49x = 13,069,729.11
  5. Step 5: Solve for x
    x = 13,069,729.11/4,086.49
  6. Step 6: Final answer
    x = 3,198.28

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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.