Home / 2,919.85-4,380.80-1,822.93

Finding the Fourth Proportional to 2,919.85, 4,380.80 and 1,822.93

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Solution

The fourth proportional to 2,919.85, 4,380.80 and 1,822.93 is: 2,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.85 : 4,380.80 = 1,822.93 : x
  2. Step 2: Convert to fraction form
    2,919.85/4,380.80 = 1,822.93/x
  3. Step 3: Cross multiply
    2,919.85x = 4,380.80 × 1,822.93
  4. Step 4: Simplify right side
    2,919.85x = 7,985,871.68
  5. Step 5: Solve for x
    x = 7,985,871.68/2,919.85
  6. Step 6: Final answer
    x = 2,735.03

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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.