Home / 3,553.29-4,903.20-1,981.49

Finding the Fourth Proportional to 3,553.29, 4,903.20 and 1,981.49

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Solution

The fourth proportional to 3,553.29, 4,903.20 and 1,981.49 is: 2,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.29 : 4,903.20 = 1,981.49 : x
  2. Step 2: Convert to fraction form
    3,553.29/4,903.20 = 1,981.49/x
  3. Step 3: Cross multiply
    3,553.29x = 4,903.20 × 1,981.49
  4. Step 4: Simplify right side
    3,553.29x = 9,715,617.25
  5. Step 5: Solve for x
    x = 9,715,617.25/3,553.29
  6. Step 6: Final answer
    x = 2,734.26

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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.