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Finding the Fourth Proportional to 6,417, 9,629.34 and 2,769

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Solution

The fourth proportional to 6,417, 9,629.34 and 2,769 is: 4,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417 : 9,629.34 = 2,769 : x
  2. Step 2: Convert to fraction form
    6,417/9,629.34 = 2,769/x
  3. Step 3: Cross multiply
    6,417x = 9,629.34 × 2,769
  4. Step 4: Simplify right side
    6,417x = 26,663,642.46
  5. Step 5: Solve for x
    x = 26,663,642.46/6,417
  6. Step 6: Final answer
    x = 4,155.16

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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.