Home / 3,553.50-4,903.83-1,981.70

Finding the Fourth Proportional to 3,553.50, 4,903.83 and 1,981.70

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Solution

The fourth proportional to 3,553.50, 4,903.83 and 1,981.70 is: 2,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.50 : 4,903.83 = 1,981.70 : x
  2. Step 2: Convert to fraction form
    3,553.50/4,903.83 = 1,981.70/x
  3. Step 3: Cross multiply
    3,553.50x = 4,903.83 × 1,981.70
  4. Step 4: Simplify right side
    3,553.50x = 9,717,895.39
  5. Step 5: Solve for x
    x = 9,717,895.39/3,553.50
  6. Step 6: Final answer
    x = 2,734.74

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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.