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Finding the Fourth Proportional to 2,609.58, 3,943.97 and 2,564.22

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Solution

The fourth proportional to 2,609.58, 3,943.97 and 2,564.22 is: 3,875.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.58 : 3,943.97 = 2,564.22 : x
  2. Step 2: Convert to fraction form
    2,609.58/3,943.97 = 2,564.22/x
  3. Step 3: Cross multiply
    2,609.58x = 3,943.97 × 2,564.22
  4. Step 4: Simplify right side
    2,609.58x = 10,113,206.75
  5. Step 5: Solve for x
    x = 10,113,206.75/2,609.58
  6. Step 6: Final answer
    x = 3,875.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.