Home / 2,351.44-3,244.85-1,288.99

Finding the Fourth Proportional to 2,351.44, 3,244.85 and 1,288.99

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Solution

The fourth proportional to 2,351.44, 3,244.85 and 1,288.99 is: 1,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.44 : 3,244.85 = 1,288.99 : x
  2. Step 2: Convert to fraction form
    2,351.44/3,244.85 = 1,288.99/x
  3. Step 3: Cross multiply
    2,351.44x = 3,244.85 × 1,288.99
  4. Step 4: Simplify right side
    2,351.44x = 4,182,580.87
  5. Step 5: Solve for x
    x = 4,182,580.87/2,351.44
  6. Step 6: Final answer
    x = 1,778.74

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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.