Home / 2,077.75-2,867.66-1,238.94

Finding the Fourth Proportional to 2,077.75, 2,867.66 and 1,238.94

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Solution

The fourth proportional to 2,077.75, 2,867.66 and 1,238.94 is: 1,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.75 : 2,867.66 = 1,238.94 : x
  2. Step 2: Convert to fraction form
    2,077.75/2,867.66 = 1,238.94/x
  3. Step 3: Cross multiply
    2,077.75x = 2,867.66 × 1,238.94
  4. Step 4: Simplify right side
    2,077.75x = 3,552,854.61
  5. Step 5: Solve for x
    x = 3,552,854.61/2,077.75
  6. Step 6: Final answer
    x = 1,709.95

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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.