Home / 3,974.92-5,486.46-2,648.14

Finding the Fourth Proportional to 3,974.92, 5,486.46 and 2,648.14

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Solution

The fourth proportional to 3,974.92, 5,486.46 and 2,648.14 is: 3,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.92 : 5,486.46 = 2,648.14 : x
  2. Step 2: Convert to fraction form
    3,974.92/5,486.46 = 2,648.14/x
  3. Step 3: Cross multiply
    3,974.92x = 5,486.46 × 2,648.14
  4. Step 4: Simplify right side
    3,974.92x = 14,528,914.18
  5. Step 5: Solve for x
    x = 14,528,914.18/3,974.92
  6. Step 6: Final answer
    x = 3,655.15

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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.