Home / 4,815.78-7,223.66-1,814.38

Finding the Fourth Proportional to 4,815.78, 7,223.66 and 1,814.38

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Solution

The fourth proportional to 4,815.78, 7,223.66 and 1,814.38 is: 2,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.78 : 7,223.66 = 1,814.38 : x
  2. Step 2: Convert to fraction form
    4,815.78/7,223.66 = 1,814.38/x
  3. Step 3: Cross multiply
    4,815.78x = 7,223.66 × 1,814.38
  4. Step 4: Simplify right side
    4,815.78x = 13,106,455.16
  5. Step 5: Solve for x
    x = 13,106,455.16/4,815.78
  6. Step 6: Final answer
    x = 2,721.57

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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.