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Finding the Fourth Proportional to 4,859.84, 7,282.85 and 2,220.86

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Solution

The fourth proportional to 4,859.84, 7,282.85 and 2,220.86 is: 3,328.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.84 : 7,282.85 = 2,220.86 : x
  2. Step 2: Convert to fraction form
    4,859.84/7,282.85 = 2,220.86/x
  3. Step 3: Cross multiply
    4,859.84x = 7,282.85 × 2,220.86
  4. Step 4: Simplify right side
    4,859.84x = 16,174,142.73
  5. Step 5: Solve for x
    x = 16,174,142.73/4,859.84
  6. Step 6: Final answer
    x = 3,328.13

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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.