Home / 1,723.78-2,585.97-491.16

Finding the Fourth Proportional to 1,723.78, 2,585.97 and 491.16

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Solution

The fourth proportional to 1,723.78, 2,585.97 and 491.16 is: 736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.78 : 2,585.97 = 491.16 : x
  2. Step 2: Convert to fraction form
    1,723.78/2,585.97 = 491.16/x
  3. Step 3: Cross multiply
    1,723.78x = 2,585.97 × 491.16
  4. Step 4: Simplify right side
    1,723.78x = 1,270,122.57
  5. Step 5: Solve for x
    x = 1,270,122.57/1,723.78
  6. Step 6: Final answer
    x = 736.83

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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.