Home / 7,778.12-11,671.70-3,274.84

Finding the Fourth Proportional to 7,778.12, 11,671.70 and 3,274.84

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Solution

The fourth proportional to 7,778.12, 11,671.70 and 3,274.84 is: 4,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.12 : 11,671.70 = 3,274.84 : x
  2. Step 2: Convert to fraction form
    7,778.12/11,671.70 = 3,274.84/x
  3. Step 3: Cross multiply
    7,778.12x = 11,671.70 × 3,274.84
  4. Step 4: Simplify right side
    7,778.12x = 38,222,950.03
  5. Step 5: Solve for x
    x = 38,222,950.03/7,778.12
  6. Step 6: Final answer
    x = 4,914.16

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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.