Home / 3,040.12-4,195.50-1,994.20

Finding the Fourth Proportional to 3,040.12, 4,195.50 and 1,994.20

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Solution

The fourth proportional to 3,040.12, 4,195.50 and 1,994.20 is: 2,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.12 : 4,195.50 = 1,994.20 : x
  2. Step 2: Convert to fraction form
    3,040.12/4,195.50 = 1,994.20/x
  3. Step 3: Cross multiply
    3,040.12x = 4,195.50 × 1,994.20
  4. Step 4: Simplify right side
    3,040.12x = 8,366,666.10
  5. Step 5: Solve for x
    x = 8,366,666.10/3,040.12
  6. Step 6: Final answer
    x = 2,752.08

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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.