Home / 4,088.88-5,645.84-3,143.21

Finding the Fourth Proportional to 4,088.88, 5,645.84 and 3,143.21

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Solution

The fourth proportional to 4,088.88, 5,645.84 and 3,143.21 is: 4,340.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.88 : 5,645.84 = 3,143.21 : x
  2. Step 2: Convert to fraction form
    4,088.88/5,645.84 = 3,143.21/x
  3. Step 3: Cross multiply
    4,088.88x = 5,645.84 × 3,143.21
  4. Step 4: Simplify right side
    4,088.88x = 17,746,016.80
  5. Step 5: Solve for x
    x = 17,746,016.80/4,088.88
  6. Step 6: Final answer
    x = 4,340.07

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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.