Home / 2,869.55-3,961.89-2,205.22

Finding the Fourth Proportional to 2,869.55, 3,961.89 and 2,205.22

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Solution

The fourth proportional to 2,869.55, 3,961.89 and 2,205.22 is: 3,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.55 : 3,961.89 = 2,205.22 : x
  2. Step 2: Convert to fraction form
    2,869.55/3,961.89 = 2,205.22/x
  3. Step 3: Cross multiply
    2,869.55x = 3,961.89 × 2,205.22
  4. Step 4: Simplify right side
    2,869.55x = 8,736,808.23
  5. Step 5: Solve for x
    x = 8,736,808.23/2,869.55
  6. Step 6: Final answer
    x = 3,044.66

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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.