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Finding the Fourth Proportional to 4,240.91, 6,363.18 and 1,645.67

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Solution

The fourth proportional to 4,240.91, 6,363.18 and 1,645.67 is: 2,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.91 : 6,363.18 = 1,645.67 : x
  2. Step 2: Convert to fraction form
    4,240.91/6,363.18 = 1,645.67/x
  3. Step 3: Cross multiply
    4,240.91x = 6,363.18 × 1,645.67
  4. Step 4: Simplify right side
    4,240.91x = 10,471,662.61
  5. Step 5: Solve for x
    x = 10,471,662.61/4,240.91
  6. Step 6: Final answer
    x = 2,469.20

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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.