Home / 2,013.26-2,778.57-1,227.15

Finding the Fourth Proportional to 2,013.26, 2,778.57 and 1,227.15

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Solution

The fourth proportional to 2,013.26, 2,778.57 and 1,227.15 is: 1,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.26 : 2,778.57 = 1,227.15 : x
  2. Step 2: Convert to fraction form
    2,013.26/2,778.57 = 1,227.15/x
  3. Step 3: Cross multiply
    2,013.26x = 2,778.57 × 1,227.15
  4. Step 4: Simplify right side
    2,013.26x = 3,409,722.18
  5. Step 5: Solve for x
    x = 3,409,722.18/2,013.26
  6. Step 6: Final answer
    x = 1,693.64

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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.