Home / 3,186.89-4,398.05-1,770.58

Finding the Fourth Proportional to 3,186.89, 4,398.05 and 1,770.58

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Solution

The fourth proportional to 3,186.89, 4,398.05 and 1,770.58 is: 2,443.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.89 : 4,398.05 = 1,770.58 : x
  2. Step 2: Convert to fraction form
    3,186.89/4,398.05 = 1,770.58/x
  3. Step 3: Cross multiply
    3,186.89x = 4,398.05 × 1,770.58
  4. Step 4: Simplify right side
    3,186.89x = 7,787,074.59
  5. Step 5: Solve for x
    x = 7,787,074.59/3,186.89
  6. Step 6: Final answer
    x = 2,443.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.