Home / 3,142.79-4,714.96-2,220.15

Finding the Fourth Proportional to 3,142.79, 4,714.96 and 2,220.15

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Solution

The fourth proportional to 3,142.79, 4,714.96 and 2,220.15 is: 3,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.79 : 4,714.96 = 2,220.15 : x
  2. Step 2: Convert to fraction form
    3,142.79/4,714.96 = 2,220.15/x
  3. Step 3: Cross multiply
    3,142.79x = 4,714.96 × 2,220.15
  4. Step 4: Simplify right side
    3,142.79x = 10,467,918.44
  5. Step 5: Solve for x
    x = 10,467,918.44/3,142.79
  6. Step 6: Final answer
    x = 3,330.77

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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.