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Finding the Fourth Proportional to 6,617.08, 9,129.54 and 4,099.60

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Solution

The fourth proportional to 6,617.08, 9,129.54 and 4,099.60 is: 5,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.08 : 9,129.54 = 4,099.60 : x
  2. Step 2: Convert to fraction form
    6,617.08/9,129.54 = 4,099.60/x
  3. Step 3: Cross multiply
    6,617.08x = 9,129.54 × 4,099.60
  4. Step 4: Simplify right side
    6,617.08x = 37,427,462.18
  5. Step 5: Solve for x
    x = 37,427,462.18/6,617.08
  6. Step 6: Final answer
    x = 5,656.19

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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.