Home / 3,512.18-5,270.99-1,322.90

Finding the Fourth Proportional to 3,512.18, 5,270.99 and 1,322.90

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Solution

The fourth proportional to 3,512.18, 5,270.99 and 1,322.90 is: 1,985.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,512.18 : 5,270.99 = 1,322.90 : x
  2. Step 2: Convert to fraction form
    3,512.18/5,270.99 = 1,322.90/x
  3. Step 3: Cross multiply
    3,512.18x = 5,270.99 × 1,322.90
  4. Step 4: Simplify right side
    3,512.18x = 6,972,992.67
  5. Step 5: Solve for x
    x = 6,972,992.67/3,512.18
  6. Step 6: Final answer
    x = 1,985.37

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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.