Home / 2,238.59-3,351.74-1,689.11

Finding the Fourth Proportional to 2,238.59, 3,351.74 and 1,689.11

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Solution

The fourth proportional to 2,238.59, 3,351.74 and 1,689.11 is: 2,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.59 : 3,351.74 = 1,689.11 : x
  2. Step 2: Convert to fraction form
    2,238.59/3,351.74 = 1,689.11/x
  3. Step 3: Cross multiply
    2,238.59x = 3,351.74 × 1,689.11
  4. Step 4: Simplify right side
    2,238.59x = 5,661,457.49
  5. Step 5: Solve for x
    x = 5,661,457.49/2,238.59
  6. Step 6: Final answer
    x = 2,529.03

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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.