Home / 3,147.53-4,343.49-1,969.25

Finding the Fourth Proportional to 3,147.53, 4,343.49 and 1,969.25

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Solution

The fourth proportional to 3,147.53, 4,343.49 and 1,969.25 is: 2,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.53 : 4,343.49 = 1,969.25 : x
  2. Step 2: Convert to fraction form
    3,147.53/4,343.49 = 1,969.25/x
  3. Step 3: Cross multiply
    3,147.53x = 4,343.49 × 1,969.25
  4. Step 4: Simplify right side
    3,147.53x = 8,553,395.97
  5. Step 5: Solve for x
    x = 8,553,395.97/3,147.53
  6. Step 6: Final answer
    x = 2,717.50

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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.