Home / 3,099.24-4,277.75-1,919.61

Finding the Fourth Proportional to 3,099.24, 4,277.75 and 1,919.61

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Solution

The fourth proportional to 3,099.24, 4,277.75 and 1,919.61 is: 2,649.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.24 : 4,277.75 = 1,919.61 : x
  2. Step 2: Convert to fraction form
    3,099.24/4,277.75 = 1,919.61/x
  3. Step 3: Cross multiply
    3,099.24x = 4,277.75 × 1,919.61
  4. Step 4: Simplify right side
    3,099.24x = 8,211,602.08
  5. Step 5: Solve for x
    x = 8,211,602.08/3,099.24
  6. Step 6: Final answer
    x = 2,649.55

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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.