Home / 5,213.35-7,820.12-2,438.49

Finding the Fourth Proportional to 5,213.35, 7,820.12 and 2,438.49

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Solution

The fourth proportional to 5,213.35, 7,820.12 and 2,438.49 is: 3,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.35 : 7,820.12 = 2,438.49 : x
  2. Step 2: Convert to fraction form
    5,213.35/7,820.12 = 2,438.49/x
  3. Step 3: Cross multiply
    5,213.35x = 7,820.12 × 2,438.49
  4. Step 4: Simplify right side
    5,213.35x = 19,069,284.42
  5. Step 5: Solve for x
    x = 19,069,284.42/5,213.35
  6. Step 6: Final answer
    x = 3,657.78

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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.