Home / 2,125.24-3,188.03-892.49

Finding the Fourth Proportional to 2,125.24, 3,188.03 and 892.49

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Solution

The fourth proportional to 2,125.24, 3,188.03 and 892.49 is: 1,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.24 : 3,188.03 = 892.49 : x
  2. Step 2: Convert to fraction form
    2,125.24/3,188.03 = 892.49/x
  3. Step 3: Cross multiply
    2,125.24x = 3,188.03 × 892.49
  4. Step 4: Simplify right side
    2,125.24x = 2,845,264.49
  5. Step 5: Solve for x
    x = 2,845,264.49/2,125.24
  6. Step 6: Final answer
    x = 1,338.80

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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.