Home / 3,428.55-4,731.39-1,856.63

Finding the Fourth Proportional to 3,428.55, 4,731.39 and 1,856.63

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Solution

The fourth proportional to 3,428.55, 4,731.39 and 1,856.63 is: 2,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.55 : 4,731.39 = 1,856.63 : x
  2. Step 2: Convert to fraction form
    3,428.55/4,731.39 = 1,856.63/x
  3. Step 3: Cross multiply
    3,428.55x = 4,731.39 × 1,856.63
  4. Step 4: Simplify right side
    3,428.55x = 8,784,452.44
  5. Step 5: Solve for x
    x = 8,784,452.44/3,428.55
  6. Step 6: Final answer
    x = 2,562.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.