Home / 1,550.26-2,321.28-818.30

Finding the Fourth Proportional to 1,550.26, 2,321.28 and 818.30

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Solution

The fourth proportional to 1,550.26, 2,321.28 and 818.30 is: 1,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.26 : 2,321.28 = 818.30 : x
  2. Step 2: Convert to fraction form
    1,550.26/2,321.28 = 818.30/x
  3. Step 3: Cross multiply
    1,550.26x = 2,321.28 × 818.30
  4. Step 4: Simplify right side
    1,550.26x = 1,899,511.53
  5. Step 5: Solve for x
    x = 1,899,511.53/1,550.26
  6. Step 6: Final answer
    x = 1,225.28

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1.5x scale

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.