Home / 3,429.51-5,143.20-1,237.95

Finding the Fourth Proportional to 3,429.51, 5,143.20 and 1,237.95

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Solution

The fourth proportional to 3,429.51, 5,143.20 and 1,237.95 is: 1,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.51 : 5,143.20 = 1,237.95 : x
  2. Step 2: Convert to fraction form
    3,429.51/5,143.20 = 1,237.95/x
  3. Step 3: Cross multiply
    3,429.51x = 5,143.20 × 1,237.95
  4. Step 4: Simplify right side
    3,429.51x = 6,367,024.44
  5. Step 5: Solve for x
    x = 6,367,024.44/3,429.51
  6. Step 6: Final answer
    x = 1,856.54

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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.