Home / 3,689.55-5,093.19-2,431.26

Finding the Fourth Proportional to 3,689.55, 5,093.19 and 2,431.26

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Solution

The fourth proportional to 3,689.55, 5,093.19 and 2,431.26 is: 3,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.55 : 5,093.19 = 2,431.26 : x
  2. Step 2: Convert to fraction form
    3,689.55/5,093.19 = 2,431.26/x
  3. Step 3: Cross multiply
    3,689.55x = 5,093.19 × 2,431.26
  4. Step 4: Simplify right side
    3,689.55x = 12,382,869.12
  5. Step 5: Solve for x
    x = 12,382,869.12/3,689.55
  6. Step 6: Final answer
    x = 3,356.20

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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.