Home / 3,959.13-5,938.66-2,109.77

Finding the Fourth Proportional to 3,959.13, 5,938.66 and 2,109.77

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Solution

The fourth proportional to 3,959.13, 5,938.66 and 2,109.77 is: 3,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.13 : 5,938.66 = 2,109.77 : x
  2. Step 2: Convert to fraction form
    3,959.13/5,938.66 = 2,109.77/x
  3. Step 3: Cross multiply
    3,959.13x = 5,938.66 × 2,109.77
  4. Step 4: Simplify right side
    3,959.13x = 12,529,206.71
  5. Step 5: Solve for x
    x = 12,529,206.71/3,959.13
  6. Step 6: Final answer
    x = 3,164.64

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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.