Home / 3,448.20-5,172.30-1,256.95

Finding the Fourth Proportional to 3,448.20, 5,172.30 and 1,256.95

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Solution

The fourth proportional to 3,448.20, 5,172.30 and 1,256.95 is: 1,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.20 : 5,172.30 = 1,256.95 : x
  2. Step 2: Convert to fraction form
    3,448.20/5,172.30 = 1,256.95/x
  3. Step 3: Cross multiply
    3,448.20x = 5,172.30 × 1,256.95
  4. Step 4: Simplify right side
    3,448.20x = 6,501,322.49
  5. Step 5: Solve for x
    x = 6,501,322.49/3,448.20
  6. Step 6: Final answer
    x = 1,885.43

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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.