Home / 3,189.02-4,400.62-1,994.55

Finding the Fourth Proportional to 3,189.02, 4,400.62 and 1,994.55

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Solution

The fourth proportional to 3,189.02, 4,400.62 and 1,994.55 is: 2,752.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.02 : 4,400.62 = 1,994.55 : x
  2. Step 2: Convert to fraction form
    3,189.02/4,400.62 = 1,994.55/x
  3. Step 3: Cross multiply
    3,189.02x = 4,400.62 × 1,994.55
  4. Step 4: Simplify right side
    3,189.02x = 8,777,242.61
  5. Step 5: Solve for x
    x = 8,777,242.61/3,189.02
  6. Step 6: Final answer
    x = 2,752.33

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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.