Home / 2,013.25-2,778.61-1,129.27

Finding the Fourth Proportional to 2,013.25, 2,778.61 and 1,129.27

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Solution

The fourth proportional to 2,013.25, 2,778.61 and 1,129.27 is: 1,558.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.25 : 2,778.61 = 1,129.27 : x
  2. Step 2: Convert to fraction form
    2,013.25/2,778.61 = 1,129.27/x
  3. Step 3: Cross multiply
    2,013.25x = 2,778.61 × 1,129.27
  4. Step 4: Simplify right side
    2,013.25x = 3,137,800.91
  5. Step 5: Solve for x
    x = 3,137,800.91/2,013.25
  6. Step 6: Final answer
    x = 1,558.57

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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.