Home / 3,923.82-5,415.39-2,530.62

Finding the Fourth Proportional to 3,923.82, 5,415.39 and 2,530.62

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Solution

The fourth proportional to 3,923.82, 5,415.39 and 2,530.62 is: 3,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.82 : 5,415.39 = 2,530.62 : x
  2. Step 2: Convert to fraction form
    3,923.82/5,415.39 = 2,530.62/x
  3. Step 3: Cross multiply
    3,923.82x = 5,415.39 × 2,530.62
  4. Step 4: Simplify right side
    3,923.82x = 13,704,294.24
  5. Step 5: Solve for x
    x = 13,704,294.24/3,923.82
  6. Step 6: Final answer
    x = 3,492.59

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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.