Home / 6,101.78-8,420.24-3,449.02

Finding the Fourth Proportional to 6,101.78, 8,420.24 and 3,449.02

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Solution

The fourth proportional to 6,101.78, 8,420.24 and 3,449.02 is: 4,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,101.78 : 8,420.24 = 3,449.02 : x
  2. Step 2: Convert to fraction form
    6,101.78/8,420.24 = 3,449.02/x
  3. Step 3: Cross multiply
    6,101.78x = 8,420.24 × 3,449.02
  4. Step 4: Simplify right side
    6,101.78x = 29,041,576.16
  5. Step 5: Solve for x
    x = 29,041,576.16/6,101.78
  6. Step 6: Final answer
    x = 4,759.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.