Home / 1,754.26-2,631.42-455.69

Finding the Fourth Proportional to 1,754.26, 2,631.42 and 455.69

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Solution

The fourth proportional to 1,754.26, 2,631.42 and 455.69 is: 683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.26 : 2,631.42 = 455.69 : x
  2. Step 2: Convert to fraction form
    1,754.26/2,631.42 = 455.69/x
  3. Step 3: Cross multiply
    1,754.26x = 2,631.42 × 455.69
  4. Step 4: Simplify right side
    1,754.26x = 1,199,118.36
  5. Step 5: Solve for x
    x = 1,199,118.36/1,754.26
  6. Step 6: Final answer
    x = 683.55

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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.