Home / 1,845.24-2,767.87-578.79

Finding the Fourth Proportional to 1,845.24, 2,767.87 and 578.79

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Solution

The fourth proportional to 1,845.24, 2,767.87 and 578.79 is: 868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.24 : 2,767.87 = 578.79 : x
  2. Step 2: Convert to fraction form
    1,845.24/2,767.87 = 578.79/x
  3. Step 3: Cross multiply
    1,845.24x = 2,767.87 × 578.79
  4. Step 4: Simplify right side
    1,845.24x = 1,602,016.20
  5. Step 5: Solve for x
    x = 1,602,016.20/1,845.24
  6. Step 6: Final answer
    x = 868.19

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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.