Home / 1,518.31-2,276.09-544.19

Finding the Fourth Proportional to 1,518.31, 2,276.09 and 544.19

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Solution

The fourth proportional to 1,518.31, 2,276.09 and 544.19 is: 815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.31 : 2,276.09 = 544.19 : x
  2. Step 2: Convert to fraction form
    1,518.31/2,276.09 = 544.19/x
  3. Step 3: Cross multiply
    1,518.31x = 2,276.09 × 544.19
  4. Step 4: Simplify right side
    1,518.31x = 1,238,622.70
  5. Step 5: Solve for x
    x = 1,238,622.70/1,518.31
  6. Step 6: Final answer
    x = 815.79

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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.