Home / 4,615.40-6,922.08-2,147.87

Finding the Fourth Proportional to 4,615.40, 6,922.08 and 2,147.87

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Solution

The fourth proportional to 4,615.40, 6,922.08 and 2,147.87 is: 3,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,615.40 : 6,922.08 = 2,147.87 : x
  2. Step 2: Convert to fraction form
    4,615.40/6,922.08 = 2,147.87/x
  3. Step 3: Cross multiply
    4,615.40x = 6,922.08 × 2,147.87
  4. Step 4: Simplify right side
    4,615.40x = 14,867,693.36
  5. Step 5: Solve for x
    x = 14,867,693.36/4,615.40
  6. Step 6: Final answer
    x = 3,221.33

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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.