Home / 2,841.77-3,922.85-1,910.81

Finding the Fourth Proportional to 2,841.77, 3,922.85 and 1,910.81

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Solution

The fourth proportional to 2,841.77, 3,922.85 and 1,910.81 is: 2,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.77 : 3,922.85 = 1,910.81 : x
  2. Step 2: Convert to fraction form
    2,841.77/3,922.85 = 1,910.81/x
  3. Step 3: Cross multiply
    2,841.77x = 3,922.85 × 1,910.81
  4. Step 4: Simplify right side
    2,841.77x = 7,495,821.01
  5. Step 5: Solve for x
    x = 7,495,821.01/2,841.77
  6. Step 6: Final answer
    x = 2,637.73

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1.5x scale

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.