Home / 5,118.51-7,677.40-1,997.94

Finding the Fourth Proportional to 5,118.51, 7,677.40 and 1,997.94

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Solution

The fourth proportional to 5,118.51, 7,677.40 and 1,997.94 is: 2,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.51 : 7,677.40 = 1,997.94 : x
  2. Step 2: Convert to fraction form
    5,118.51/7,677.40 = 1,997.94/x
  3. Step 3: Cross multiply
    5,118.51x = 7,677.40 × 1,997.94
  4. Step 4: Simplify right side
    5,118.51x = 15,338,984.56
  5. Step 5: Solve for x
    x = 15,338,984.56/5,118.51
  6. Step 6: Final answer
    x = 2,996.77

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Similar ratio
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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.