Home / 3,166.40-4,744.20-2,615.60

Finding the Fourth Proportional to 3,166.40, 4,744.20 and 2,615.60

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Solution

The fourth proportional to 3,166.40, 4,744.20 and 2,615.60 is: 3,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.40 : 4,744.20 = 2,615.60 : x
  2. Step 2: Convert to fraction form
    3,166.40/4,744.20 = 2,615.60/x
  3. Step 3: Cross multiply
    3,166.40x = 4,744.20 × 2,615.60
  4. Step 4: Simplify right side
    3,166.40x = 12,408,929.52
  5. Step 5: Solve for x
    x = 12,408,929.52/3,166.40
  6. Step 6: Final answer
    x = 3,918.94

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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.