Home / 3,398.91-4,688.34-2,456.09

Finding the Fourth Proportional to 3,398.91, 4,688.34 and 2,456.09

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Solution

The fourth proportional to 3,398.91, 4,688.34 and 2,456.09 is: 3,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.91 : 4,688.34 = 2,456.09 : x
  2. Step 2: Convert to fraction form
    3,398.91/4,688.34 = 2,456.09/x
  3. Step 3: Cross multiply
    3,398.91x = 4,688.34 × 2,456.09
  4. Step 4: Simplify right side
    3,398.91x = 11,514,961.55
  5. Step 5: Solve for x
    x = 11,514,961.55/3,398.91
  6. Step 6: Final answer
    x = 3,387.84

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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.