Home / 3,934.48-5,429.74-2,166.02

Finding the Fourth Proportional to 3,934.48, 5,429.74 and 2,166.02

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Solution

The fourth proportional to 3,934.48, 5,429.74 and 2,166.02 is: 2,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.48 : 5,429.74 = 2,166.02 : x
  2. Step 2: Convert to fraction form
    3,934.48/5,429.74 = 2,166.02/x
  3. Step 3: Cross multiply
    3,934.48x = 5,429.74 × 2,166.02
  4. Step 4: Simplify right side
    3,934.48x = 11,760,925.43
  5. Step 5: Solve for x
    x = 11,760,925.43/3,934.48
  6. Step 6: Final answer
    x = 2,989.19

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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.