Home / 3,429.02-5,143.18-1,237.78

Finding the Fourth Proportional to 3,429.02, 5,143.18 and 1,237.78

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Solution

The fourth proportional to 3,429.02, 5,143.18 and 1,237.78 is: 1,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.02 : 5,143.18 = 1,237.78 : x
  2. Step 2: Convert to fraction form
    3,429.02/5,143.18 = 1,237.78/x
  3. Step 3: Cross multiply
    3,429.02x = 5,143.18 × 1,237.78
  4. Step 4: Simplify right side
    3,429.02x = 6,366,125.34
  5. Step 5: Solve for x
    x = 6,366,125.34/3,429.02
  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.