Home / 7,994.40-11,990.52-2,151.36

Finding the Fourth Proportional to 7,994.40, 11,990.52 and 2,151.36

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Solution

The fourth proportional to 7,994.40, 11,990.52 and 2,151.36 is: 3,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.40 : 11,990.52 = 2,151.36 : x
  2. Step 2: Convert to fraction form
    7,994.40/11,990.52 = 2,151.36/x
  3. Step 3: Cross multiply
    7,994.40x = 11,990.52 × 2,151.36
  4. Step 4: Simplify right side
    7,994.40x = 25,795,925.11
  5. Step 5: Solve for x
    x = 25,795,925.11/7,994.40
  6. Step 6: Final answer
    x = 3,226.75

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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.