Home / 1,518.31-2,276.55-736.77

Finding the Fourth Proportional to 1,518.31, 2,276.55 and 736.77

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Solution

The fourth proportional to 1,518.31, 2,276.55 and 736.77 is: 1,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.31 : 2,276.55 = 736.77 : x
  2. Step 2: Convert to fraction form
    1,518.31/2,276.55 = 736.77/x
  3. Step 3: Cross multiply
    1,518.31x = 2,276.55 × 736.77
  4. Step 4: Simplify right side
    1,518.31x = 1,677,293.74
  5. Step 5: Solve for x
    x = 1,677,293.74/1,518.31
  6. Step 6: Final answer
    x = 1,104.71

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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.