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Finding the Fourth Proportional to 6,128, 9,163.96 and 4,569.07

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Solution

The fourth proportional to 6,128, 9,163.96 and 4,569.07 is: 6,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128 : 9,163.96 = 4,569.07 : x
  2. Step 2: Convert to fraction form
    6,128/9,163.96 = 4,569.07/x
  3. Step 3: Cross multiply
    6,128x = 9,163.96 × 4,569.07
  4. Step 4: Simplify right side
    6,128x = 41,870,774.72
  5. Step 5: Solve for x
    x = 41,870,774.72/6,128
  6. Step 6: Final answer
    x = 6,832.70

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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.