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Finding the Fourth Proportional to 7,407.05, 10,221.88 and 4,050.08

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Solution

The fourth proportional to 7,407.05, 10,221.88 and 4,050.08 is: 5,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.05 : 10,221.88 = 4,050.08 : x
  2. Step 2: Convert to fraction form
    7,407.05/10,221.88 = 4,050.08/x
  3. Step 3: Cross multiply
    7,407.05x = 10,221.88 × 4,050.08
  4. Step 4: Simplify right side
    7,407.05x = 41,399,380.64
  5. Step 5: Solve for x
    x = 41,399,380.64/7,407.05
  6. Step 6: Final answer
    x = 5,589.19

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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.