Home / 3,937.95-5,434.74-2,169.81

Finding the Fourth Proportional to 3,937.95, 5,434.74 and 2,169.81

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Solution

The fourth proportional to 3,937.95, 5,434.74 and 2,169.81 is: 2,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.95 : 5,434.74 = 2,169.81 : x
  2. Step 2: Convert to fraction form
    3,937.95/5,434.74 = 2,169.81/x
  3. Step 3: Cross multiply
    3,937.95x = 5,434.74 × 2,169.81
  4. Step 4: Simplify right side
    3,937.95x = 11,792,353.20
  5. Step 5: Solve for x
    x = 11,792,353.20/3,937.95
  6. Step 6: Final answer
    x = 2,994.54

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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.