Home / 2,087.82-2,881.30-1,248.66

Finding the Fourth Proportional to 2,087.82, 2,881.30 and 1,248.66

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Solution

The fourth proportional to 2,087.82, 2,881.30 and 1,248.66 is: 1,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.82 : 2,881.30 = 1,248.66 : x
  2. Step 2: Convert to fraction form
    2,087.82/2,881.30 = 1,248.66/x
  3. Step 3: Cross multiply
    2,087.82x = 2,881.30 × 1,248.66
  4. Step 4: Simplify right side
    2,087.82x = 3,597,764.06
  5. Step 5: Solve for x
    x = 3,597,764.06/2,087.82
  6. Step 6: Final answer
    x = 1,723.22

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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.