Home / 2,238.66-3,090.22-1,680.74

Finding the Fourth Proportional to 2,238.66, 3,090.22 and 1,680.74

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Solution

The fourth proportional to 2,238.66, 3,090.22 and 1,680.74 is: 2,320.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.66 : 3,090.22 = 1,680.74 : x
  2. Step 2: Convert to fraction form
    2,238.66/3,090.22 = 1,680.74/x
  3. Step 3: Cross multiply
    2,238.66x = 3,090.22 × 1,680.74
  4. Step 4: Simplify right side
    2,238.66x = 5,193,856.36
  5. Step 5: Solve for x
    x = 5,193,856.36/2,238.66
  6. Step 6: Final answer
    x = 2,320.07

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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.