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Finding the Fourth Proportional to 3,403.48, 5,100.48 and 1,647.76

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Solution

The fourth proportional to 3,403.48, 5,100.48 and 1,647.76 is: 2,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.48 : 5,100.48 = 1,647.76 : x
  2. Step 2: Convert to fraction form
    3,403.48/5,100.48 = 1,647.76/x
  3. Step 3: Cross multiply
    3,403.48x = 5,100.48 × 1,647.76
  4. Step 4: Simplify right side
    3,403.48x = 8,404,366.92
  5. Step 5: Solve for x
    x = 8,404,366.92/3,403.48
  6. Step 6: Final answer
    x = 2,469.35

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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.