Home / 3,551.34-4,900.85-1,979.44

Finding the Fourth Proportional to 3,551.34, 4,900.85 and 1,979.44

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Solution

The fourth proportional to 3,551.34, 4,900.85 and 1,979.44 is: 2,731.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.34 : 4,900.85 = 1,979.44 : x
  2. Step 2: Convert to fraction form
    3,551.34/4,900.85 = 1,979.44/x
  3. Step 3: Cross multiply
    3,551.34x = 4,900.85 × 1,979.44
  4. Step 4: Simplify right side
    3,551.34x = 9,700,934.93
  5. Step 5: Solve for x
    x = 9,700,934.93/3,551.34
  6. Step 6: Final answer
    x = 2,731.62

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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.