Home / 7,380.84-11,076.12-3,485.64

Finding the Fourth Proportional to 7,380.84, 11,076.12 and 3,485.64

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Solution

The fourth proportional to 7,380.84, 11,076.12 and 3,485.64 is: 5,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.84 : 11,076.12 = 3,485.64 : x
  2. Step 2: Convert to fraction form
    7,380.84/11,076.12 = 3,485.64/x
  3. Step 3: Cross multiply
    7,380.84x = 11,076.12 × 3,485.64
  4. Step 4: Simplify right side
    7,380.84x = 38,607,366.92
  5. Step 5: Solve for x
    x = 38,607,366.92/7,380.84
  6. Step 6: Final answer
    x = 5,230.76

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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.