Home / 2,486.64-3,729.96-1,997.28

Finding the Fourth Proportional to 2,486.64, 3,729.96 and 1,997.28

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Solution

The fourth proportional to 2,486.64, 3,729.96 and 1,997.28 is: 2,995.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.64 : 3,729.96 = 1,997.28 : x
  2. Step 2: Convert to fraction form
    2,486.64/3,729.96 = 1,997.28/x
  3. Step 3: Cross multiply
    2,486.64x = 3,729.96 × 1,997.28
  4. Step 4: Simplify right side
    2,486.64x = 7,449,774.51
  5. Step 5: Solve for x
    x = 7,449,774.51/2,486.64
  6. Step 6: Final answer
    x = 2,995.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.