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Finding the Fourth Proportional to 6,552.21, 9,041.55 and 3,899.12

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Solution

The fourth proportional to 6,552.21, 9,041.55 and 3,899.12 is: 5,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,552.21 : 9,041.55 = 3,899.12 : x
  2. Step 2: Convert to fraction form
    6,552.21/9,041.55 = 3,899.12/x
  3. Step 3: Cross multiply
    6,552.21x = 9,041.55 × 3,899.12
  4. Step 4: Simplify right side
    6,552.21x = 35,254,043.23
  5. Step 5: Solve for x
    x = 35,254,043.23/6,552.21
  6. Step 6: Final answer
    x = 5,380.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.