Home / 5,110.62-7,666.43-1,412.86

Finding the Fourth Proportional to 5,110.62, 7,666.43 and 1,412.86

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Solution

The fourth proportional to 5,110.62, 7,666.43 and 1,412.86 is: 2,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.62 : 7,666.43 = 1,412.86 : x
  2. Step 2: Convert to fraction form
    5,110.62/7,666.43 = 1,412.86/x
  3. Step 3: Cross multiply
    5,110.62x = 7,666.43 × 1,412.86
  4. Step 4: Simplify right side
    5,110.62x = 10,831,592.29
  5. Step 5: Solve for x
    x = 10,831,592.29/5,110.62
  6. Step 6: Final answer
    x = 2,119.43

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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.