Home / 1,550.90-2,322.24-818.25

Finding the Fourth Proportional to 1,550.90, 2,322.24 and 818.25

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Solution

The fourth proportional to 1,550.90, 2,322.24 and 818.25 is: 1,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.90 : 2,322.24 = 818.25 : x
  2. Step 2: Convert to fraction form
    1,550.90/2,322.24 = 818.25/x
  3. Step 3: Cross multiply
    1,550.90x = 2,322.24 × 818.25
  4. Step 4: Simplify right side
    1,550.90x = 1,900,181.07
  5. Step 5: Solve for x
    x = 1,900,181.07/1,550.90
  6. Step 6: Final answer
    x = 1,225.21

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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.