Home / 1,968.90-2,717.10-1,084.68

Finding the Fourth Proportional to 1,968.90, 2,717.10 and 1,084.68

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Solution

The fourth proportional to 1,968.90, 2,717.10 and 1,084.68 is: 1,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.90 : 2,717.10 = 1,084.68 : x
  2. Step 2: Convert to fraction form
    1,968.90/2,717.10 = 1,084.68/x
  3. Step 3: Cross multiply
    1,968.90x = 2,717.10 × 1,084.68
  4. Step 4: Simplify right side
    1,968.90x = 2,947,184.03
  5. Step 5: Solve for x
    x = 2,947,184.03/1,968.90
  6. Step 6: Final answer
    x = 1,496.87

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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.