Home / 3,979.74-5,957.73-2,415

Finding the Fourth Proportional to 3,979.74, 5,957.73 and 2,415

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Solution

The fourth proportional to 3,979.74, 5,957.73 and 2,415 is: 3,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.74 : 5,957.73 = 2,415 : x
  2. Step 2: Convert to fraction form
    3,979.74/5,957.73 = 2,415/x
  3. Step 3: Cross multiply
    3,979.74x = 5,957.73 × 2,415
  4. Step 4: Simplify right side
    3,979.74x = 14,387,917.95
  5. Step 5: Solve for x
    x = 14,387,917.95/3,979.74
  6. Step 6: Final answer
    x = 3,615.29

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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.