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Finding the Fourth Proportional to 2,289.84, 3,429.90 and 2,124.60

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Solution

The fourth proportional to 2,289.84, 3,429.90 and 2,124.60 is: 3,182.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.84 : 3,429.90 = 2,124.60 : x
  2. Step 2: Convert to fraction form
    2,289.84/3,429.90 = 2,124.60/x
  3. Step 3: Cross multiply
    2,289.84x = 3,429.90 × 2,124.60
  4. Step 4: Simplify right side
    2,289.84x = 7,287,165.54
  5. Step 5: Solve for x
    x = 7,287,165.54/2,289.84
  6. Step 6: Final answer
    x = 3,182.39

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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.