Home / 3,970.47-5,958.69-2,718.06

Finding the Fourth Proportional to 3,970.47, 5,958.69 and 2,718.06

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Solution

The fourth proportional to 3,970.47, 5,958.69 and 2,718.06 is: 4,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.47 : 5,958.69 = 2,718.06 : x
  2. Step 2: Convert to fraction form
    3,970.47/5,958.69 = 2,718.06/x
  3. Step 3: Cross multiply
    3,970.47x = 5,958.69 × 2,718.06
  4. Step 4: Simplify right side
    3,970.47x = 16,196,076.94
  5. Step 5: Solve for x
    x = 16,196,076.94/3,970.47
  6. Step 6: Final answer
    x = 4,079.13

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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.