Home / 1,910.20-2,635.85-1,070.85

Finding the Fourth Proportional to 1,910.20, 2,635.85 and 1,070.85

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Solution

The fourth proportional to 1,910.20, 2,635.85 and 1,070.85 is: 1,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.20 : 2,635.85 = 1,070.85 : x
  2. Step 2: Convert to fraction form
    1,910.20/2,635.85 = 1,070.85/x
  3. Step 3: Cross multiply
    1,910.20x = 2,635.85 × 1,070.85
  4. Step 4: Simplify right side
    1,910.20x = 2,822,594.62
  5. Step 5: Solve for x
    x = 2,822,594.62/1,910.20
  6. Step 6: Final answer
    x = 1,477.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.