Home / 5,118.29-7,677.59-1,998.17

Finding the Fourth Proportional to 5,118.29, 7,677.59 and 1,998.17

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Solution

The fourth proportional to 5,118.29, 7,677.59 and 1,998.17 is: 2,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.29 : 7,677.59 = 1,998.17 : x
  2. Step 2: Convert to fraction form
    5,118.29/7,677.59 = 1,998.17/x
  3. Step 3: Cross multiply
    5,118.29x = 7,677.59 × 1,998.17
  4. Step 4: Simplify right side
    5,118.29x = 15,341,110.42
  5. Step 5: Solve for x
    x = 15,341,110.42/5,118.29
  6. Step 6: Final answer
    x = 2,997.31

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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.