Home / 6,076.20-9,108.90-5,420.10

Finding the Fourth Proportional to 6,076.20, 9,108.90 and 5,420.10

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Solution

The fourth proportional to 6,076.20, 9,108.90 and 5,420.10 is: 8,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,076.20 : 9,108.90 = 5,420.10 : x
  2. Step 2: Convert to fraction form
    6,076.20/9,108.90 = 5,420.10/x
  3. Step 3: Cross multiply
    6,076.20x = 9,108.90 × 5,420.10
  4. Step 4: Simplify right side
    6,076.20x = 49,371,148.89
  5. Step 5: Solve for x
    x = 49,371,148.89/6,076.20
  6. Step 6: Final answer
    x = 8,125.33

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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.