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Finding the Fourth Proportional to 2,736, 3,776.36 and 1,557.77

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Solution

The fourth proportional to 2,736, 3,776.36 and 1,557.77 is: 2,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,736 : 3,776.36 = 1,557.77 : x
  2. Step 2: Convert to fraction form
    2,736/3,776.36 = 1,557.77/x
  3. Step 3: Cross multiply
    2,736x = 3,776.36 × 1,557.77
  4. Step 4: Simplify right side
    2,736x = 5,882,673.65
  5. Step 5: Solve for x
    x = 5,882,673.65/2,736
  6. Step 6: Final answer
    x = 2,150.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.