Home / 3,428.62-4,731.46-1,856.70

Finding the Fourth Proportional to 3,428.62, 4,731.46 and 1,856.70

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Solution

The fourth proportional to 3,428.62, 4,731.46 and 1,856.70 is: 2,562.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.62 : 4,731.46 = 1,856.70 : x
  2. Step 2: Convert to fraction form
    3,428.62/4,731.46 = 1,856.70/x
  3. Step 3: Cross multiply
    3,428.62x = 4,731.46 × 1,856.70
  4. Step 4: Simplify right side
    3,428.62x = 8,784,901.78
  5. Step 5: Solve for x
    x = 8,784,901.78/3,428.62
  6. Step 6: Final answer
    x = 2,562.23

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1.5x scale

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.