Home / 3,189.95-4,393.32-2,747.69

Finding the Fourth Proportional to 3,189.95, 4,393.32 and 2,747.69

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Solution

The fourth proportional to 3,189.95, 4,393.32 and 2,747.69 is: 3,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.95 : 4,393.32 = 2,747.69 : x
  2. Step 2: Convert to fraction form
    3,189.95/4,393.32 = 2,747.69/x
  3. Step 3: Cross multiply
    3,189.95x = 4,393.32 × 2,747.69
  4. Step 4: Simplify right side
    3,189.95x = 12,071,459.46
  5. Step 5: Solve for x
    x = 12,071,459.46/3,189.95
  6. Step 6: Final answer
    x = 3,784.22

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