Home / 2,342.20-3,232.94-1,398.66

Finding the Fourth Proportional to 2,342.20, 3,232.94 and 1,398.66

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Solution

The fourth proportional to 2,342.20, 3,232.94 and 1,398.66 is: 1,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.20 : 3,232.94 = 1,398.66 : x
  2. Step 2: Convert to fraction form
    2,342.20/3,232.94 = 1,398.66/x
  3. Step 3: Cross multiply
    2,342.20x = 3,232.94 × 1,398.66
  4. Step 4: Simplify right side
    2,342.20x = 4,521,783.86
  5. Step 5: Solve for x
    x = 4,521,783.86/2,342.20
  6. Step 6: Final answer
    x = 1,930.57

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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.