Home / 1,943.36-2,680.32-1,244.80

Finding the Fourth Proportional to 1,943.36, 2,680.32 and 1,244.80

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Solution

The fourth proportional to 1,943.36, 2,680.32 and 1,244.80 is: 1,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.36 : 2,680.32 = 1,244.80 : x
  2. Step 2: Convert to fraction form
    1,943.36/2,680.32 = 1,244.80/x
  3. Step 3: Cross multiply
    1,943.36x = 2,680.32 × 1,244.80
  4. Step 4: Simplify right side
    1,943.36x = 3,336,462.34
  5. Step 5: Solve for x
    x = 3,336,462.34/1,943.36
  6. Step 6: Final answer
    x = 1,716.85

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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.