Home / 2,628.90-3,625.29-2,039.22

Finding the Fourth Proportional to 2,628.90, 3,625.29 and 2,039.22

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Solution

The fourth proportional to 2,628.90, 3,625.29 and 2,039.22 is: 2,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.90 : 3,625.29 = 2,039.22 : x
  2. Step 2: Convert to fraction form
    2,628.90/3,625.29 = 2,039.22/x
  3. Step 3: Cross multiply
    2,628.90x = 3,625.29 × 2,039.22
  4. Step 4: Simplify right side
    2,628.90x = 7,392,763.87
  5. Step 5: Solve for x
    x = 7,392,763.87/2,628.90
  6. Step 6: Final answer
    x = 2,812.11

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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.