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Finding the Fourth Proportional to 4,815.74, 7,220.12 and 2,472.31

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Solution

The fourth proportional to 4,815.74, 7,220.12 and 2,472.31 is: 3,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.74 : 7,220.12 = 2,472.31 : x
  2. Step 2: Convert to fraction form
    4,815.74/7,220.12 = 2,472.31/x
  3. Step 3: Cross multiply
    4,815.74x = 7,220.12 × 2,472.31
  4. Step 4: Simplify right side
    4,815.74x = 17,850,374.88
  5. Step 5: Solve for x
    x = 17,850,374.88/4,815.74
  6. Step 6: Final answer
    x = 3,706.67

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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.