Home / 2,788.13-3,847.50-1,668.42

Finding the Fourth Proportional to 2,788.13, 3,847.50 and 1,668.42

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Solution

The fourth proportional to 2,788.13, 3,847.50 and 1,668.42 is: 2,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.13 : 3,847.50 = 1,668.42 : x
  2. Step 2: Convert to fraction form
    2,788.13/3,847.50 = 1,668.42/x
  3. Step 3: Cross multiply
    2,788.13x = 3,847.50 × 1,668.42
  4. Step 4: Simplify right side
    2,788.13x = 6,419,245.95
  5. Step 5: Solve for x
    x = 6,419,245.95/2,788.13
  6. Step 6: Final answer
    x = 2,302.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.