Home / 2,919.45-4,029.51-1,924.90

Finding the Fourth Proportional to 2,919.45, 4,029.51 and 1,924.90

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Solution

The fourth proportional to 2,919.45, 4,029.51 and 1,924.90 is: 2,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.45 : 4,029.51 = 1,924.90 : x
  2. Step 2: Convert to fraction form
    2,919.45/4,029.51 = 1,924.90/x
  3. Step 3: Cross multiply
    2,919.45x = 4,029.51 × 1,924.90
  4. Step 4: Simplify right side
    2,919.45x = 7,756,403.80
  5. Step 5: Solve for x
    x = 7,756,403.80/2,919.45
  6. Step 6: Final answer
    x = 2,656.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.