Home / 3,551.18-4,900.71-1,979.37

Finding the Fourth Proportional to 3,551.18, 4,900.71 and 1,979.37

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Solution

The fourth proportional to 3,551.18, 4,900.71 and 1,979.37 is: 2,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.18 : 4,900.71 = 1,979.37 : x
  2. Step 2: Convert to fraction form
    3,551.18/4,900.71 = 1,979.37/x
  3. Step 3: Cross multiply
    3,551.18x = 4,900.71 × 1,979.37
  4. Step 4: Simplify right side
    3,551.18x = 9,700,318.35
  5. Step 5: Solve for x
    x = 9,700,318.35/3,551.18
  6. Step 6: Final answer
    x = 2,731.58

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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.