Home / 4,920.28-7,383.18-2,611.72

Finding the Fourth Proportional to 4,920.28, 7,383.18 and 2,611.72

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Solution

The fourth proportional to 4,920.28, 7,383.18 and 2,611.72 is: 3,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.28 : 7,383.18 = 2,611.72 : x
  2. Step 2: Convert to fraction form
    4,920.28/7,383.18 = 2,611.72/x
  3. Step 3: Cross multiply
    4,920.28x = 7,383.18 × 2,611.72
  4. Step 4: Simplify right side
    4,920.28x = 19,282,798.87
  5. Step 5: Solve for x
    x = 19,282,798.87/4,920.28
  6. Step 6: Final answer
    x = 3,919.05

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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.