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Finding the Fourth Proportional to 3,535.59, 4,878.82 and 1,942.20

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Solution

The fourth proportional to 3,535.59, 4,878.82 and 1,942.20 is: 2,680.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.59 : 4,878.82 = 1,942.20 : x
  2. Step 2: Convert to fraction form
    3,535.59/4,878.82 = 1,942.20/x
  3. Step 3: Cross multiply
    3,535.59x = 4,878.82 × 1,942.20
  4. Step 4: Simplify right side
    3,535.59x = 9,475,626.75
  5. Step 5: Solve for x
    x = 9,475,626.75/3,535.59
  6. Step 6: Final answer
    x = 2,680.07

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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.