Home / 2,551.84-3,522.08-1,998.88

Finding the Fourth Proportional to 2,551.84, 3,522.08 and 1,998.88

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Solution

The fourth proportional to 2,551.84, 3,522.08 and 1,998.88 is: 2,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.84 : 3,522.08 = 1,998.88 : x
  2. Step 2: Convert to fraction form
    2,551.84/3,522.08 = 1,998.88/x
  3. Step 3: Cross multiply
    2,551.84x = 3,522.08 × 1,998.88
  4. Step 4: Simplify right side
    2,551.84x = 7,040,215.27
  5. Step 5: Solve for x
    x = 7,040,215.27/2,551.84
  6. Step 6: Final answer
    x = 2,758.88

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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.