Home / 3,551.90-4,901.52-1,979.96

Finding the Fourth Proportional to 3,551.90, 4,901.52 and 1,979.96

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Solution

The fourth proportional to 3,551.90, 4,901.52 and 1,979.96 is: 2,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.90 : 4,901.52 = 1,979.96 : x
  2. Step 2: Convert to fraction form
    3,551.90/4,901.52 = 1,979.96/x
  3. Step 3: Cross multiply
    3,551.90x = 4,901.52 × 1,979.96
  4. Step 4: Simplify right side
    3,551.90x = 9,704,813.54
  5. Step 5: Solve for x
    x = 9,704,813.54/3,551.90
  6. Step 6: Final answer
    x = 2,732.29

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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.