Home / 5,010.05-7,515.11-2,820.35

Finding the Fourth Proportional to 5,010.05, 7,515.11 and 2,820.35

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Solution

The fourth proportional to 5,010.05, 7,515.11 and 2,820.35 is: 4,230.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,010.05 : 7,515.11 = 2,820.35 : x
  2. Step 2: Convert to fraction form
    5,010.05/7,515.11 = 2,820.35/x
  3. Step 3: Cross multiply
    5,010.05x = 7,515.11 × 2,820.35
  4. Step 4: Simplify right side
    5,010.05x = 21,195,266.33
  5. Step 5: Solve for x
    x = 21,195,266.33/5,010.05
  6. Step 6: Final answer
    x = 4,230.55

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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.