Home / 2,161.49-3,244.05-929.82

Finding the Fourth Proportional to 2,161.49, 3,244.05 and 929.82

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Solution

The fourth proportional to 2,161.49, 3,244.05 and 929.82 is: 1,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.49 : 3,244.05 = 929.82 : x
  2. Step 2: Convert to fraction form
    2,161.49/3,244.05 = 929.82/x
  3. Step 3: Cross multiply
    2,161.49x = 3,244.05 × 929.82
  4. Step 4: Simplify right side
    2,161.49x = 3,016,371.93
  5. Step 5: Solve for x
    x = 3,016,371.93/2,161.49
  6. Step 6: Final answer
    x = 1,395.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.