Home / 2,013.73-2,778.99-1,129.52

Finding the Fourth Proportional to 2,013.73, 2,778.99 and 1,129.52

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Solution

The fourth proportional to 2,013.73, 2,778.99 and 1,129.52 is: 1,558.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.73 : 2,778.99 = 1,129.52 : x
  2. Step 2: Convert to fraction form
    2,013.73/2,778.99 = 1,129.52/x
  3. Step 3: Cross multiply
    2,013.73x = 2,778.99 × 1,129.52
  4. Step 4: Simplify right side
    2,013.73x = 3,138,924.78
  5. Step 5: Solve for x
    x = 3,138,924.78/2,013.73
  6. Step 6: Final answer
    x = 1,558.76

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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.