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Finding the Fourth Proportional to 2,220.32, 3,330.47 and 576.73

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Solution

The fourth proportional to 2,220.32, 3,330.47 and 576.73 is: 865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.32 : 3,330.47 = 576.73 : x
  2. Step 2: Convert to fraction form
    2,220.32/3,330.47 = 576.73/x
  3. Step 3: Cross multiply
    2,220.32x = 3,330.47 × 576.73
  4. Step 4: Simplify right side
    2,220.32x = 1,920,781.96
  5. Step 5: Solve for x
    x = 1,920,781.96/2,220.32
  6. Step 6: Final answer
    x = 865.09

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Double scale
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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.