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Finding the Fourth Proportional to 6,699.55, 9,249.05 and 4,431

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Solution

The fourth proportional to 6,699.55, 9,249.05 and 4,431 is: 6,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.55 : 9,249.05 = 4,431 : x
  2. Step 2: Convert to fraction form
    6,699.55/9,249.05 = 4,431/x
  3. Step 3: Cross multiply
    6,699.55x = 9,249.05 × 4,431
  4. Step 4: Simplify right side
    6,699.55x = 40,982,540.55
  5. Step 5: Solve for x
    x = 40,982,540.55/6,699.55
  6. Step 6: Final answer
    x = 6,117.21

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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.