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Finding the Fourth Proportional to 2,215.94, 3,323.66 and 572.49

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Solution

The fourth proportional to 2,215.94, 3,323.66 and 572.49 is: 858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.94 : 3,323.66 = 572.49 : x
  2. Step 2: Convert to fraction form
    2,215.94/3,323.66 = 572.49/x
  3. Step 3: Cross multiply
    2,215.94x = 3,323.66 × 572.49
  4. Step 4: Simplify right side
    2,215.94x = 1,902,759.25
  5. Step 5: Solve for x
    x = 1,902,759.25/2,215.94
  6. Step 6: Final answer
    x = 858.67

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1.5x scale

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.