Home / 2,767.77-4,150.62-918.45

Finding the Fourth Proportional to 2,767.77, 4,150.62 and 918.45

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Solution

The fourth proportional to 2,767.77, 4,150.62 and 918.45 is: 1,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.77 : 4,150.62 = 918.45 : x
  2. Step 2: Convert to fraction form
    2,767.77/4,150.62 = 918.45/x
  3. Step 3: Cross multiply
    2,767.77x = 4,150.62 × 918.45
  4. Step 4: Simplify right side
    2,767.77x = 3,812,136.94
  5. Step 5: Solve for x
    x = 3,812,136.94/2,767.77
  6. Step 6: Final answer
    x = 1,377.33

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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.