Home / 2,988.97-4,125.47-1,994.63

Finding the Fourth Proportional to 2,988.97, 4,125.47 and 1,994.63

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Solution

The fourth proportional to 2,988.97, 4,125.47 and 1,994.63 is: 2,753.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.97 : 4,125.47 = 1,994.63 : x
  2. Step 2: Convert to fraction form
    2,988.97/4,125.47 = 1,994.63/x
  3. Step 3: Cross multiply
    2,988.97x = 4,125.47 × 1,994.63
  4. Step 4: Simplify right side
    2,988.97x = 8,228,755.63
  5. Step 5: Solve for x
    x = 8,228,755.63/2,988.97
  6. Step 6: Final answer
    x = 2,753.04

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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.