Home / 5,109.45-7,657.75-2,184.31

Finding the Fourth Proportional to 5,109.45, 7,657.75 and 2,184.31

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Solution

The fourth proportional to 5,109.45, 7,657.75 and 2,184.31 is: 3,273.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.45 : 7,657.75 = 2,184.31 : x
  2. Step 2: Convert to fraction form
    5,109.45/7,657.75 = 2,184.31/x
  3. Step 3: Cross multiply
    5,109.45x = 7,657.75 × 2,184.31
  4. Step 4: Simplify right side
    5,109.45x = 16,726,899.90
  5. Step 5: Solve for x
    x = 16,726,899.90/5,109.45
  6. Step 6: Final answer
    x = 3,273.72

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1.5x scale

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.