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Finding the Fourth Proportional to 2,864.75, 4,297.12 and 1,769.49

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Solution

The fourth proportional to 2,864.75, 4,297.12 and 1,769.49 is: 2,654.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.75 : 4,297.12 = 1,769.49 : x
  2. Step 2: Convert to fraction form
    2,864.75/4,297.12 = 1,769.49/x
  3. Step 3: Cross multiply
    2,864.75x = 4,297.12 × 1,769.49
  4. Step 4: Simplify right side
    2,864.75x = 7,603,706.45
  5. Step 5: Solve for x
    x = 7,603,706.45/2,864.75
  6. Step 6: Final answer
    x = 2,654.24

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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.