Home / 1,633.40-2,450.90-767.56

Finding the Fourth Proportional to 1,633.40, 2,450.90 and 767.56

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Solution

The fourth proportional to 1,633.40, 2,450.90 and 767.56 is: 1,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.40 : 2,450.90 = 767.56 : x
  2. Step 2: Convert to fraction form
    1,633.40/2,450.90 = 767.56/x
  3. Step 3: Cross multiply
    1,633.40x = 2,450.90 × 767.56
  4. Step 4: Simplify right side
    1,633.40x = 1,881,212.80
  5. Step 5: Solve for x
    x = 1,881,212.80/1,633.40
  6. Step 6: Final answer
    x = 1,151.72

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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.