Home / 3,069.48-4,232.71-2,172.81

Finding the Fourth Proportional to 3,069.48, 4,232.71 and 2,172.81

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Solution

The fourth proportional to 3,069.48, 4,232.71 and 2,172.81 is: 2,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.48 : 4,232.71 = 2,172.81 : x
  2. Step 2: Convert to fraction form
    3,069.48/4,232.71 = 2,172.81/x
  3. Step 3: Cross multiply
    3,069.48x = 4,232.71 × 2,172.81
  4. Step 4: Simplify right side
    3,069.48x = 9,196,874.62
  5. Step 5: Solve for x
    x = 9,196,874.62/3,069.48
  6. Step 6: Final answer
    x = 2,996.23

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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.