Home / 1,919.04-2,881.80-1,903.92

Finding the Fourth Proportional to 1,919.04, 2,881.80 and 1,903.92

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Solution

The fourth proportional to 1,919.04, 2,881.80 and 1,903.92 is: 2,859.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.04 : 2,881.80 = 1,903.92 : x
  2. Step 2: Convert to fraction form
    1,919.04/2,881.80 = 1,903.92/x
  3. Step 3: Cross multiply
    1,919.04x = 2,881.80 × 1,903.92
  4. Step 4: Simplify right side
    1,919.04x = 5,486,716.66
  5. Step 5: Solve for x
    x = 5,486,716.66/1,919.04
  6. Step 6: Final answer
    x = 2,859.09

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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.