Home / 3,098.57-4,275.81-1,772.09

Finding the Fourth Proportional to 3,098.57, 4,275.81 and 1,772.09

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Solution

The fourth proportional to 3,098.57, 4,275.81 and 1,772.09 is: 2,445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.57 : 4,275.81 = 1,772.09 : x
  2. Step 2: Convert to fraction form
    3,098.57/4,275.81 = 1,772.09/x
  3. Step 3: Cross multiply
    3,098.57x = 4,275.81 × 1,772.09
  4. Step 4: Simplify right side
    3,098.57x = 7,577,120.14
  5. Step 5: Solve for x
    x = 7,577,120.14/3,098.57
  6. Step 6: Final answer
    x = 2,445.36

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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.