Home / 3,535.14-4,878.78-1,963.20

Finding the Fourth Proportional to 3,535.14, 4,878.78 and 1,963.20

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Solution

The fourth proportional to 3,535.14, 4,878.78 and 1,963.20 is: 2,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.14 : 4,878.78 = 1,963.20 : x
  2. Step 2: Convert to fraction form
    3,535.14/4,878.78 = 1,963.20/x
  3. Step 3: Cross multiply
    3,535.14x = 4,878.78 × 1,963.20
  4. Step 4: Simplify right side
    3,535.14x = 9,578,020.90
  5. Step 5: Solve for x
    x = 9,578,020.90/3,535.14
  6. Step 6: Final answer
    x = 2,709.38

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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.