Home / 3,428.74-4,731.68-1,856.83

Finding the Fourth Proportional to 3,428.74, 4,731.68 and 1,856.83

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Solution

The fourth proportional to 3,428.74, 4,731.68 and 1,856.83 is: 2,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.74 : 4,731.68 = 1,856.83 : x
  2. Step 2: Convert to fraction form
    3,428.74/4,731.68 = 1,856.83/x
  3. Step 3: Cross multiply
    3,428.74x = 4,731.68 × 1,856.83
  4. Step 4: Simplify right side
    3,428.74x = 8,785,925.37
  5. Step 5: Solve for x
    x = 8,785,925.37/3,428.74
  6. Step 6: Final answer
    x = 2,562.44

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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.