Home / 5,190.03-7,774.20-2,419.11

Finding the Fourth Proportional to 5,190.03, 7,774.20 and 2,419.11

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Solution

The fourth proportional to 5,190.03, 7,774.20 and 2,419.11 is: 3,623.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.03 : 7,774.20 = 2,419.11 : x
  2. Step 2: Convert to fraction form
    5,190.03/7,774.20 = 2,419.11/x
  3. Step 3: Cross multiply
    5,190.03x = 7,774.20 × 2,419.11
  4. Step 4: Simplify right side
    5,190.03x = 18,806,644.96
  5. Step 5: Solve for x
    x = 18,806,644.96/5,190.03
  6. Step 6: Final answer
    x = 3,623.61

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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.