Home / 3,974.64-5,486.84-2,382.04

Finding the Fourth Proportional to 3,974.64, 5,486.84 and 2,382.04

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Solution

The fourth proportional to 3,974.64, 5,486.84 and 2,382.04 is: 3,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.64 : 5,486.84 = 2,382.04 : x
  2. Step 2: Convert to fraction form
    3,974.64/5,486.84 = 2,382.04/x
  3. Step 3: Cross multiply
    3,974.64x = 5,486.84 × 2,382.04
  4. Step 4: Simplify right side
    3,974.64x = 13,069,872.35
  5. Step 5: Solve for x
    x = 13,069,872.35/3,974.64
  6. Step 6: Final answer
    x = 3,288.32

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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.