Home / 3,172.62-4,376.43-2,239.50

Finding the Fourth Proportional to 3,172.62, 4,376.43 and 2,239.50

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Solution

The fourth proportional to 3,172.62, 4,376.43 and 2,239.50 is: 3,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.62 : 4,376.43 = 2,239.50 : x
  2. Step 2: Convert to fraction form
    3,172.62/4,376.43 = 2,239.50/x
  3. Step 3: Cross multiply
    3,172.62x = 4,376.43 × 2,239.50
  4. Step 4: Simplify right side
    3,172.62x = 9,801,014.99
  5. Step 5: Solve for x
    x = 9,801,014.99/3,172.62
  6. Step 6: Final answer
    x = 3,089.25

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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.