Home / 2,788.07-3,847.50-1,609.11

Finding the Fourth Proportional to 2,788.07, 3,847.50 and 1,609.11

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Solution

The fourth proportional to 2,788.07, 3,847.50 and 1,609.11 is: 2,220.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.07 : 3,847.50 = 1,609.11 : x
  2. Step 2: Convert to fraction form
    2,788.07/3,847.50 = 1,609.11/x
  3. Step 3: Cross multiply
    2,788.07x = 3,847.50 × 1,609.11
  4. Step 4: Simplify right side
    2,788.07x = 6,191,042.68
  5. Step 5: Solve for x
    x = 6,191,042.68/2,788.07
  6. Step 6: Final answer
    x = 2,220.55

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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.