Home / 6,918.66-10,377.86-1,988.33

Finding the Fourth Proportional to 6,918.66, 10,377.86 and 1,988.33

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Solution

The fourth proportional to 6,918.66, 10,377.86 and 1,988.33 is: 2,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.66 : 10,377.86 = 1,988.33 : x
  2. Step 2: Convert to fraction form
    6,918.66/10,377.86 = 1,988.33/x
  3. Step 3: Cross multiply
    6,918.66x = 10,377.86 × 1,988.33
  4. Step 4: Simplify right side
    6,918.66x = 20,634,548.54
  5. Step 5: Solve for x
    x = 20,634,548.54/6,918.66
  6. Step 6: Final answer
    x = 2,982.45

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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.