Home / 3,425.28-5,128.08-1,777.92

Finding the Fourth Proportional to 3,425.28, 5,128.08 and 1,777.92

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Solution

The fourth proportional to 3,425.28, 5,128.08 and 1,777.92 is: 2,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.28 : 5,128.08 = 1,777.92 : x
  2. Step 2: Convert to fraction form
    3,425.28/5,128.08 = 1,777.92/x
  3. Step 3: Cross multiply
    3,425.28x = 5,128.08 × 1,777.92
  4. Step 4: Simplify right side
    3,425.28x = 9,117,315.99
  5. Step 5: Solve for x
    x = 9,117,315.99/3,425.28
  6. Step 6: Final answer
    x = 2,661.77

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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.