Home / 5,026.78-7,540.75-1,909.12

Finding the Fourth Proportional to 5,026.78, 7,540.75 and 1,909.12

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Solution

The fourth proportional to 5,026.78, 7,540.75 and 1,909.12 is: 2,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,026.78 : 7,540.75 = 1,909.12 : x
  2. Step 2: Convert to fraction form
    5,026.78/7,540.75 = 1,909.12/x
  3. Step 3: Cross multiply
    5,026.78x = 7,540.75 × 1,909.12
  4. Step 4: Simplify right side
    5,026.78x = 14,396,183.57
  5. Step 5: Solve for x
    x = 14,396,183.57/5,026.78
  6. Step 6: Final answer
    x = 2,863.90

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1.5x scale

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.