Home / 1,968.75-2,716.88-1,084.55

Finding the Fourth Proportional to 1,968.75, 2,716.88 and 1,084.55

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Solution

The fourth proportional to 1,968.75, 2,716.88 and 1,084.55 is: 1,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.75 : 2,716.88 = 1,084.55 : x
  2. Step 2: Convert to fraction form
    1,968.75/2,716.88 = 1,084.55/x
  3. Step 3: Cross multiply
    1,968.75x = 2,716.88 × 1,084.55
  4. Step 4: Simplify right side
    1,968.75x = 2,946,593.57
  5. Step 5: Solve for x
    x = 2,946,593.57/1,968.75
  6. Step 6: Final answer
    x = 1,496.68

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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.