Home / 3,178.29-4,731.83-3,162.90

Finding the Fourth Proportional to 3,178.29, 4,731.83 and 3,162.90

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Solution

The fourth proportional to 3,178.29, 4,731.83 and 3,162.90 is: 4,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.29 : 4,731.83 = 3,162.90 : x
  2. Step 2: Convert to fraction form
    3,178.29/4,731.83 = 3,162.90/x
  3. Step 3: Cross multiply
    3,178.29x = 4,731.83 × 3,162.90
  4. Step 4: Simplify right side
    3,178.29x = 14,966,296.73
  5. Step 5: Solve for x
    x = 14,966,296.73/3,178.29
  6. Step 6: Final answer
    x = 4,708.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.