Home / 2,690.22-4,025.68-1,950.68

Finding the Fourth Proportional to 2,690.22, 4,025.68 and 1,950.68

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Solution

The fourth proportional to 2,690.22, 4,025.68 and 1,950.68 is: 2,919.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.22 : 4,025.68 = 1,950.68 : x
  2. Step 2: Convert to fraction form
    2,690.22/4,025.68 = 1,950.68/x
  3. Step 3: Cross multiply
    2,690.22x = 4,025.68 × 1,950.68
  4. Step 4: Simplify right side
    2,690.22x = 7,852,813.46
  5. Step 5: Solve for x
    x = 7,852,813.46/2,690.22
  6. Step 6: Final answer
    x = 2,919.02

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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.