Home / 6,619.86-9,131.13-4,099.14

Finding the Fourth Proportional to 6,619.86, 9,131.13 and 4,099.14

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Solution

The fourth proportional to 6,619.86, 9,131.13 and 4,099.14 is: 5,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.86 : 9,131.13 = 4,099.14 : x
  2. Step 2: Convert to fraction form
    6,619.86/9,131.13 = 4,099.14/x
  3. Step 3: Cross multiply
    6,619.86x = 9,131.13 × 4,099.14
  4. Step 4: Simplify right side
    6,619.86x = 37,429,780.23
  5. Step 5: Solve for x
    x = 37,429,780.23/6,619.86
  6. Step 6: Final answer
    x = 5,654.16

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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.