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Finding the Fourth Proportional to 3,755.68, 5,628.08 and 1,561.68

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Solution

The fourth proportional to 3,755.68, 5,628.08 and 1,561.68 is: 2,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.68 : 5,628.08 = 1,561.68 : x
  2. Step 2: Convert to fraction form
    3,755.68/5,628.08 = 1,561.68/x
  3. Step 3: Cross multiply
    3,755.68x = 5,628.08 × 1,561.68
  4. Step 4: Simplify right side
    3,755.68x = 8,789,259.97
  5. Step 5: Solve for x
    x = 8,789,259.97/3,755.68
  6. Step 6: Final answer
    x = 2,340.26

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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.