Home / 3,386.91-5,088.57-2,156.73

Finding the Fourth Proportional to 3,386.91, 5,088.57 and 2,156.73

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Solution

The fourth proportional to 3,386.91, 5,088.57 and 2,156.73 is: 3,240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.91 : 5,088.57 = 2,156.73 : x
  2. Step 2: Convert to fraction form
    3,386.91/5,088.57 = 2,156.73/x
  3. Step 3: Cross multiply
    3,386.91x = 5,088.57 × 2,156.73
  4. Step 4: Simplify right side
    3,386.91x = 10,974,656.54
  5. Step 5: Solve for x
    x = 10,974,656.54/3,386.91
  6. Step 6: Final answer
    x = 3,240.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.