Home / 3,172.27-4,377.47-1,896.12

Finding the Fourth Proportional to 3,172.27, 4,377.47 and 1,896.12

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Solution

The fourth proportional to 3,172.27, 4,377.47 and 1,896.12 is: 2,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.27 : 4,377.47 = 1,896.12 : x
  2. Step 2: Convert to fraction form
    3,172.27/4,377.47 = 1,896.12/x
  3. Step 3: Cross multiply
    3,172.27x = 4,377.47 × 1,896.12
  4. Step 4: Simplify right side
    3,172.27x = 8,300,208.42
  5. Step 5: Solve for x
    x = 8,300,208.42/3,172.27
  6. Step 6: Final answer
    x = 2,616.49

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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.