Home / 2,177.20-3,258.60-1,782.64

Finding the Fourth Proportional to 2,177.20, 3,258.60 and 1,782.64

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Solution

The fourth proportional to 2,177.20, 3,258.60 and 1,782.64 is: 2,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.20 : 3,258.60 = 1,782.64 : x
  2. Step 2: Convert to fraction form
    2,177.20/3,258.60 = 1,782.64/x
  3. Step 3: Cross multiply
    2,177.20x = 3,258.60 × 1,782.64
  4. Step 4: Simplify right side
    2,177.20x = 5,808,910.70
  5. Step 5: Solve for x
    x = 5,808,910.70/2,177.20
  6. Step 6: Final answer
    x = 2,668.06

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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.