Home / 2,918.88-4,377.54-1,994.28

Finding the Fourth Proportional to 2,918.88, 4,377.54 and 1,994.28

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Solution

The fourth proportional to 2,918.88, 4,377.54 and 1,994.28 is: 2,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.88 : 4,377.54 = 1,994.28 : x
  2. Step 2: Convert to fraction form
    2,918.88/4,377.54 = 1,994.28/x
  3. Step 3: Cross multiply
    2,918.88x = 4,377.54 × 1,994.28
  4. Step 4: Simplify right side
    2,918.88x = 8,730,040.47
  5. Step 5: Solve for x
    x = 8,730,040.47/2,918.88
  6. Step 6: Final answer
    x = 2,990.89

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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.