Home / 3,428.32-4,731.09-1,856.43

Finding the Fourth Proportional to 3,428.32, 4,731.09 and 1,856.43

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Solution

The fourth proportional to 3,428.32, 4,731.09 and 1,856.43 is: 2,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.32 : 4,731.09 = 1,856.43 : x
  2. Step 2: Convert to fraction form
    3,428.32/4,731.09 = 1,856.43/x
  3. Step 3: Cross multiply
    3,428.32x = 4,731.09 × 1,856.43
  4. Step 4: Simplify right side
    3,428.32x = 8,782,937.41
  5. Step 5: Solve for x
    x = 8,782,937.41/3,428.32
  6. Step 6: Final answer
    x = 2,561.88

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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.