Home / 2,233.36-3,081.98-1,238.66

Finding the Fourth Proportional to 2,233.36, 3,081.98 and 1,238.66

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Solution

The fourth proportional to 2,233.36, 3,081.98 and 1,238.66 is: 1,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.36 : 3,081.98 = 1,238.66 : x
  2. Step 2: Convert to fraction form
    2,233.36/3,081.98 = 1,238.66/x
  3. Step 3: Cross multiply
    2,233.36x = 3,081.98 × 1,238.66
  4. Step 4: Simplify right side
    2,233.36x = 3,817,503.74
  5. Step 5: Solve for x
    x = 3,817,503.74/2,233.36
  6. Step 6: Final answer
    x = 1,709.31

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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.