Home / 3,098.43-4,276.62-1,918.87

Finding the Fourth Proportional to 3,098.43, 4,276.62 and 1,918.87

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Solution

The fourth proportional to 3,098.43, 4,276.62 and 1,918.87 is: 2,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.43 : 4,276.62 = 1,918.87 : x
  2. Step 2: Convert to fraction form
    3,098.43/4,276.62 = 1,918.87/x
  3. Step 3: Cross multiply
    3,098.43x = 4,276.62 × 1,918.87
  4. Step 4: Simplify right side
    3,098.43x = 8,206,277.82
  5. Step 5: Solve for x
    x = 8,206,277.82/3,098.43
  6. Step 6: Final answer
    x = 2,648.53

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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.