Home / 2,747.48-4,109.31-1,619.05

Finding the Fourth Proportional to 2,747.48, 4,109.31 and 1,619.05

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Solution

The fourth proportional to 2,747.48, 4,109.31 and 1,619.05 is: 2,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.48 : 4,109.31 = 1,619.05 : x
  2. Step 2: Convert to fraction form
    2,747.48/4,109.31 = 1,619.05/x
  3. Step 3: Cross multiply
    2,747.48x = 4,109.31 × 1,619.05
  4. Step 4: Simplify right side
    2,747.48x = 6,653,200.26
  5. Step 5: Solve for x
    x = 6,653,200.26/2,747.48
  6. Step 6: Final answer
    x = 2,421.57

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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.