Home / 2,919.85-4,380.05-1,070.52

Finding the Fourth Proportional to 2,919.85, 4,380.05 and 1,070.52

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Solution

The fourth proportional to 2,919.85, 4,380.05 and 1,070.52 is: 1,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.85 : 4,380.05 = 1,070.52 : x
  2. Step 2: Convert to fraction form
    2,919.85/4,380.05 = 1,070.52/x
  3. Step 3: Cross multiply
    2,919.85x = 4,380.05 × 1,070.52
  4. Step 4: Simplify right side
    2,919.85x = 4,688,917.38
  5. Step 5: Solve for x
    x = 4,688,917.38/2,919.85
  6. Step 6: Final answer
    x = 1,605.88

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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.