Home / 3,321.08-4,981.81-1,675.70

Finding the Fourth Proportional to 3,321.08, 4,981.81 and 1,675.70

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Solution

The fourth proportional to 3,321.08, 4,981.81 and 1,675.70 is: 2,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.08 : 4,981.81 = 1,675.70 : x
  2. Step 2: Convert to fraction form
    3,321.08/4,981.81 = 1,675.70/x
  3. Step 3: Cross multiply
    3,321.08x = 4,981.81 × 1,675.70
  4. Step 4: Simplify right side
    3,321.08x = 8,348,019.02
  5. Step 5: Solve for x
    x = 8,348,019.02/3,321.08
  6. Step 6: Final answer
    x = 2,513.65

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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.