Home / 2,729.61-4,087.35-2,289.80

Finding the Fourth Proportional to 2,729.61, 4,087.35 and 2,289.80

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Solution

The fourth proportional to 2,729.61, 4,087.35 and 2,289.80 is: 3,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.61 : 4,087.35 = 2,289.80 : x
  2. Step 2: Convert to fraction form
    2,729.61/4,087.35 = 2,289.80/x
  3. Step 3: Cross multiply
    2,729.61x = 4,087.35 × 2,289.80
  4. Step 4: Simplify right side
    2,729.61x = 9,359,193.59
  5. Step 5: Solve for x
    x = 9,359,193.59/2,729.61
  6. Step 6: Final answer
    x = 3,428.77

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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.