Home / 3,564.34-4,919-1,992.42

Finding the Fourth Proportional to 3,564.34, 4,919 and 1,992.42

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Solution

The fourth proportional to 3,564.34, 4,919 and 1,992.42 is: 2,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,564.34 : 4,919 = 1,992.42 : x
  2. Step 2: Convert to fraction form
    3,564.34/4,919 = 1,992.42/x
  3. Step 3: Cross multiply
    3,564.34x = 4,919 × 1,992.42
  4. Step 4: Simplify right side
    3,564.34x = 9,800,713.98
  5. Step 5: Solve for x
    x = 9,800,713.98/3,564.34
  6. Step 6: Final answer
    x = 2,749.66

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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.