Home / 1,512.22-2,087.57-882.55

Finding the Fourth Proportional to 1,512.22, 2,087.57 and 882.55

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Solution

The fourth proportional to 1,512.22, 2,087.57 and 882.55 is: 1,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.22 : 2,087.57 = 882.55 : x
  2. Step 2: Convert to fraction form
    1,512.22/2,087.57 = 882.55/x
  3. Step 3: Cross multiply
    1,512.22x = 2,087.57 × 882.55
  4. Step 4: Simplify right side
    1,512.22x = 1,842,377.98
  5. Step 5: Solve for x
    x = 1,842,377.98/1,512.22
  6. Step 6: Final answer
    x = 1,218.33

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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.