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Finding the Fourth Proportional to 6,693.90, 10,040.59 and 3,186.42

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Solution

The fourth proportional to 6,693.90, 10,040.59 and 3,186.42 is: 4,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,693.90 : 10,040.59 = 3,186.42 : x
  2. Step 2: Convert to fraction form
    6,693.90/10,040.59 = 3,186.42/x
  3. Step 3: Cross multiply
    6,693.90x = 10,040.59 × 3,186.42
  4. Step 4: Simplify right side
    6,693.90x = 31,993,536.79
  5. Step 5: Solve for x
    x = 31,993,536.79/6,693.90
  6. Step 6: Final answer
    x = 4,779.51

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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.