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Finding the Fourth Proportional to 3,872.81, 5,798.59 and 2,703.98

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Solution

The fourth proportional to 3,872.81, 5,798.59 and 2,703.98 is: 4,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.81 : 5,798.59 = 2,703.98 : x
  2. Step 2: Convert to fraction form
    3,872.81/5,798.59 = 2,703.98/x
  3. Step 3: Cross multiply
    3,872.81x = 5,798.59 × 2,703.98
  4. Step 4: Simplify right side
    3,872.81x = 15,679,279.12
  5. Step 5: Solve for x
    x = 15,679,279.12/3,872.81
  6. Step 6: Final answer
    x = 4,048.55

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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.