Home / 3,428.56-4,731.36-1,856.65

Finding the Fourth Proportional to 3,428.56, 4,731.36 and 1,856.65

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Solution

The fourth proportional to 3,428.56, 4,731.36 and 1,856.65 is: 2,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.56 : 4,731.36 = 1,856.65 : x
  2. Step 2: Convert to fraction form
    3,428.56/4,731.36 = 1,856.65/x
  3. Step 3: Cross multiply
    3,428.56x = 4,731.36 × 1,856.65
  4. Step 4: Simplify right side
    3,428.56x = 8,784,479.54
  5. Step 5: Solve for x
    x = 8,784,479.54/3,428.56
  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.