Home / 3,810.81-5,716.05-1,345.65

Finding the Fourth Proportional to 3,810.81, 5,716.05 and 1,345.65

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Solution

The fourth proportional to 3,810.81, 5,716.05 and 1,345.65 is: 2,018.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.81 : 5,716.05 = 1,345.65 : x
  2. Step 2: Convert to fraction form
    3,810.81/5,716.05 = 1,345.65/x
  3. Step 3: Cross multiply
    3,810.81x = 5,716.05 × 1,345.65
  4. Step 4: Simplify right side
    3,810.81x = 7,691,802.68
  5. Step 5: Solve for x
    x = 7,691,802.68/3,810.81
  6. Step 6: Final answer
    x = 2,018.42

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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.