Home / 2,919.64-4,380.68-1,751.89

Finding the Fourth Proportional to 2,919.64, 4,380.68 and 1,751.89

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Solution

The fourth proportional to 2,919.64, 4,380.68 and 1,751.89 is: 2,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.64 : 4,380.68 = 1,751.89 : x
  2. Step 2: Convert to fraction form
    2,919.64/4,380.68 = 1,751.89/x
  3. Step 3: Cross multiply
    2,919.64x = 4,380.68 × 1,751.89
  4. Step 4: Simplify right side
    2,919.64x = 7,674,460.73
  5. Step 5: Solve for x
    x = 7,674,460.73/2,919.64
  6. Step 6: Final answer
    x = 2,628.56

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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.