Home / 5,109.96-7,663.32-2,187.48

Finding the Fourth Proportional to 5,109.96, 7,663.32 and 2,187.48

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Solution

The fourth proportional to 5,109.96, 7,663.32 and 2,187.48 is: 3,280.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.96 : 7,663.32 = 2,187.48 : x
  2. Step 2: Convert to fraction form
    5,109.96/7,663.32 = 2,187.48/x
  3. Step 3: Cross multiply
    5,109.96x = 7,663.32 × 2,187.48
  4. Step 4: Simplify right side
    5,109.96x = 16,763,331.87
  5. Step 5: Solve for x
    x = 16,763,331.87/5,109.96
  6. Step 6: Final answer
    x = 3,280.52

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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.