Home / 3,151.60-4,734.15-1,919.68

Finding the Fourth Proportional to 3,151.60, 4,734.15 and 1,919.68

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Solution

The fourth proportional to 3,151.60, 4,734.15 and 1,919.68 is: 2,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.60 : 4,734.15 = 1,919.68 : x
  2. Step 2: Convert to fraction form
    3,151.60/4,734.15 = 1,919.68/x
  3. Step 3: Cross multiply
    3,151.60x = 4,734.15 × 1,919.68
  4. Step 4: Simplify right side
    3,151.60x = 9,088,053.07
  5. Step 5: Solve for x
    x = 9,088,053.07/3,151.60
  6. Step 6: Final answer
    x = 2,883.63

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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.