Home / 2,212.94-3,319.04-631.55

Finding the Fourth Proportional to 2,212.94, 3,319.04 and 631.55

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Solution

The fourth proportional to 2,212.94, 3,319.04 and 631.55 is: 947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.94 : 3,319.04 = 631.55 : x
  2. Step 2: Convert to fraction form
    2,212.94/3,319.04 = 631.55/x
  3. Step 3: Cross multiply
    2,212.94x = 3,319.04 × 631.55
  4. Step 4: Simplify right side
    2,212.94x = 2,096,119.96
  5. Step 5: Solve for x
    x = 2,096,119.96/2,212.94
  6. Step 6: Final answer
    x = 947.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.