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Finding the Fourth Proportional to 2,869.05, 3,959.04 and 1,609.94

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Solution

The fourth proportional to 2,869.05, 3,959.04 and 1,609.94 is: 2,221.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.05 : 3,959.04 = 1,609.94 : x
  2. Step 2: Convert to fraction form
    2,869.05/3,959.04 = 1,609.94/x
  3. Step 3: Cross multiply
    2,869.05x = 3,959.04 × 1,609.94
  4. Step 4: Simplify right side
    2,869.05x = 6,373,832.79
  5. Step 5: Solve for x
    x = 6,373,832.79/2,869.05
  6. Step 6: Final answer
    x = 2,221.58

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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.