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Finding the Fourth Proportional to 2,609.47, 3,595.62 and 1,945.54

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Solution

The fourth proportional to 2,609.47, 3,595.62 and 1,945.54 is: 2,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.47 : 3,595.62 = 1,945.54 : x
  2. Step 2: Convert to fraction form
    2,609.47/3,595.62 = 1,945.54/x
  3. Step 3: Cross multiply
    2,609.47x = 3,595.62 × 1,945.54
  4. Step 4: Simplify right side
    2,609.47x = 6,995,422.53
  5. Step 5: Solve for x
    x = 6,995,422.53/2,609.47
  6. Step 6: Final answer
    x = 2,680.78

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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.