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Finding the Fourth Proportional to 3,363.50, 4,640.61 and 1,947.22

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Solution

The fourth proportional to 3,363.50, 4,640.61 and 1,947.22 is: 2,686.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.50 : 4,640.61 = 1,947.22 : x
  2. Step 2: Convert to fraction form
    3,363.50/4,640.61 = 1,947.22/x
  3. Step 3: Cross multiply
    3,363.50x = 4,640.61 × 1,947.22
  4. Step 4: Simplify right side
    3,363.50x = 9,036,265.40
  5. Step 5: Solve for x
    x = 9,036,265.40/3,363.50
  6. Step 6: Final answer
    x = 2,686.57

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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.