Home / 5,420.73-8,115.60-5,076.28

Finding the Fourth Proportional to 5,420.73, 8,115.60 and 5,076.28

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Solution

The fourth proportional to 5,420.73, 8,115.60 and 5,076.28 is: 7,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.73 : 8,115.60 = 5,076.28 : x
  2. Step 2: Convert to fraction form
    5,420.73/8,115.60 = 5,076.28/x
  3. Step 3: Cross multiply
    5,420.73x = 8,115.60 × 5,076.28
  4. Step 4: Simplify right side
    5,420.73x = 41,197,037.68
  5. Step 5: Solve for x
    x = 41,197,037.68/5,420.73
  6. Step 6: Final answer
    x = 7,599.91

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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.