Home / 3,342.45-4,609.94-2,161.47

Finding the Fourth Proportional to 3,342.45, 4,609.94 and 2,161.47

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Solution

The fourth proportional to 3,342.45, 4,609.94 and 2,161.47 is: 2,981.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.45 : 4,609.94 = 2,161.47 : x
  2. Step 2: Convert to fraction form
    3,342.45/4,609.94 = 2,161.47/x
  3. Step 3: Cross multiply
    3,342.45x = 4,609.94 × 2,161.47
  4. Step 4: Simplify right side
    3,342.45x = 9,964,247.01
  5. Step 5: Solve for x
    x = 9,964,247.01/3,342.45
  6. Step 6: Final answer
    x = 2,981.12

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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.