Home / 4,172.90-5,755.20-2,994.62

Finding the Fourth Proportional to 4,172.90, 5,755.20 and 2,994.62

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Solution

The fourth proportional to 4,172.90, 5,755.20 and 2,994.62 is: 4,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.90 : 5,755.20 = 2,994.62 : x
  2. Step 2: Convert to fraction form
    4,172.90/5,755.20 = 2,994.62/x
  3. Step 3: Cross multiply
    4,172.90x = 5,755.20 × 2,994.62
  4. Step 4: Simplify right side
    4,172.90x = 17,234,637.02
  5. Step 5: Solve for x
    x = 17,234,637.02/4,172.90
  6. Step 6: Final answer
    x = 4,130.13

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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.