Home / 5,076.78-7,615.11-2,612.28

Finding the Fourth Proportional to 5,076.78, 7,615.11 and 2,612.28

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Solution

The fourth proportional to 5,076.78, 7,615.11 and 2,612.28 is: 3,918.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.78 : 7,615.11 = 2,612.28 : x
  2. Step 2: Convert to fraction form
    5,076.78/7,615.11 = 2,612.28/x
  3. Step 3: Cross multiply
    5,076.78x = 7,615.11 × 2,612.28
  4. Step 4: Simplify right side
    5,076.78x = 19,892,799.55
  5. Step 5: Solve for x
    x = 19,892,799.55/5,076.78
  6. Step 6: Final answer
    x = 3,918.39

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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.