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Finding the Fourth Proportional to 6,405.72, 9,608.23 and 2,458.87

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Solution

The fourth proportional to 6,405.72, 9,608.23 and 2,458.87 is: 3,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.72 : 9,608.23 = 2,458.87 : x
  2. Step 2: Convert to fraction form
    6,405.72/9,608.23 = 2,458.87/x
  3. Step 3: Cross multiply
    6,405.72x = 9,608.23 × 2,458.87
  4. Step 4: Simplify right side
    6,405.72x = 23,625,367.55
  5. Step 5: Solve for x
    x = 23,625,367.55/6,405.72
  6. Step 6: Final answer
    x = 3,688.17

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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.