Home / 3,008.71-4,153.90-2,689.09

Finding the Fourth Proportional to 3,008.71, 4,153.90 and 2,689.09

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Solution

The fourth proportional to 3,008.71, 4,153.90 and 2,689.09 is: 3,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,008.71 : 4,153.90 = 2,689.09 : x
  2. Step 2: Convert to fraction form
    3,008.71/4,153.90 = 2,689.09/x
  3. Step 3: Cross multiply
    3,008.71x = 4,153.90 × 2,689.09
  4. Step 4: Simplify right side
    3,008.71x = 11,170,210.57
  5. Step 5: Solve for x
    x = 11,170,210.57/3,008.71
  6. Step 6: Final answer
    x = 3,712.62

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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.