Home / 3,486.73-4,812.26-2,691.21

Finding the Fourth Proportional to 3,486.73, 4,812.26 and 2,691.21

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Solution

The fourth proportional to 3,486.73, 4,812.26 and 2,691.21 is: 3,714.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.73 : 4,812.26 = 2,691.21 : x
  2. Step 2: Convert to fraction form
    3,486.73/4,812.26 = 2,691.21/x
  3. Step 3: Cross multiply
    3,486.73x = 4,812.26 × 2,691.21
  4. Step 4: Simplify right side
    3,486.73x = 12,950,802.23
  5. Step 5: Solve for x
    x = 12,950,802.23/3,486.73
  6. Step 6: Final answer
    x = 3,714.31

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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.