Home / 2,275.33-3,138.25-2,009.30

Finding the Fourth Proportional to 2,275.33, 3,138.25 and 2,009.30

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Solution

The fourth proportional to 2,275.33, 3,138.25 and 2,009.30 is: 2,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.33 : 3,138.25 = 2,009.30 : x
  2. Step 2: Convert to fraction form
    2,275.33/3,138.25 = 2,009.30/x
  3. Step 3: Cross multiply
    2,275.33x = 3,138.25 × 2,009.30
  4. Step 4: Simplify right side
    2,275.33x = 6,305,672.55
  5. Step 5: Solve for x
    x = 6,305,672.55/2,275.33
  6. Step 6: Final answer
    x = 2,771.33

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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.