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Finding the Fourth Proportional to 1,624.88, 2,243.53 and 996.26

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Solution

The fourth proportional to 1,624.88, 2,243.53 and 996.26 is: 1,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.88 : 2,243.53 = 996.26 : x
  2. Step 2: Convert to fraction form
    1,624.88/2,243.53 = 996.26/x
  3. Step 3: Cross multiply
    1,624.88x = 2,243.53 × 996.26
  4. Step 4: Simplify right side
    1,624.88x = 2,235,139.20
  5. Step 5: Solve for x
    x = 2,235,139.20/1,624.88
  6. Step 6: Final answer
    x = 1,375.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.