Home / 3,754.64-5,178.26-2,812.65

Finding the Fourth Proportional to 3,754.64, 5,178.26 and 2,812.65

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Solution

The fourth proportional to 3,754.64, 5,178.26 and 2,812.65 is: 3,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.64 : 5,178.26 = 2,812.65 : x
  2. Step 2: Convert to fraction form
    3,754.64/5,178.26 = 2,812.65/x
  3. Step 3: Cross multiply
    3,754.64x = 5,178.26 × 2,812.65
  4. Step 4: Simplify right side
    3,754.64x = 14,564,607.10
  5. Step 5: Solve for x
    x = 14,564,607.10/3,754.64
  6. Step 6: Final answer
    x = 3,879.10

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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.