Home / 3,438.06-5,151.69-1,972.86

Finding the Fourth Proportional to 3,438.06, 5,151.69 and 1,972.86

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Solution

The fourth proportional to 3,438.06, 5,151.69 and 1,972.86 is: 2,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.06 : 5,151.69 = 1,972.86 : x
  2. Step 2: Convert to fraction form
    3,438.06/5,151.69 = 1,972.86/x
  3. Step 3: Cross multiply
    3,438.06x = 5,151.69 × 1,972.86
  4. Step 4: Simplify right side
    3,438.06x = 10,163,563.13
  5. Step 5: Solve for x
    x = 10,163,563.13/3,438.06
  6. Step 6: Final answer
    x = 2,956.19

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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.