Home / 2,919.62-4,379.20-1,070.66

Finding the Fourth Proportional to 2,919.62, 4,379.20 and 1,070.66

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Solution

The fourth proportional to 2,919.62, 4,379.20 and 1,070.66 is: 1,605.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.62 : 4,379.20 = 1,070.66 : x
  2. Step 2: Convert to fraction form
    2,919.62/4,379.20 = 1,070.66/x
  3. Step 3: Cross multiply
    2,919.62x = 4,379.20 × 1,070.66
  4. Step 4: Simplify right side
    2,919.62x = 4,688,642.54
  5. Step 5: Solve for x
    x = 4,688,642.54/2,919.62
  6. Step 6: Final answer
    x = 1,605.91

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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.