Home / 2,351.00-3,244.40-1,288.73

Finding the Fourth Proportional to 2,351.00, 3,244.40 and 1,288.73

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Solution

The fourth proportional to 2,351.00, 3,244.40 and 1,288.73 is: 1,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.00 : 3,244.40 = 1,288.73 : x
  2. Step 2: Convert to fraction form
    2,351.00/3,244.40 = 1,288.73/x
  3. Step 3: Cross multiply
    2,351.00x = 3,244.40 × 1,288.73
  4. Step 4: Simplify right side
    2,351.00x = 4,181,132.95
  5. Step 5: Solve for x
    x = 4,181,132.95/2,351.00
  6. Step 6: Final answer
    x = 1,778.45

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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.