Home / 6,930.14-10,397.79-4,158.80

Finding the Fourth Proportional to 6,930.14, 10,397.79 and 4,158.80

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Solution

The fourth proportional to 6,930.14, 10,397.79 and 4,158.80 is: 6,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,930.14 : 10,397.79 = 4,158.80 : x
  2. Step 2: Convert to fraction form
    6,930.14/10,397.79 = 4,158.80/x
  3. Step 3: Cross multiply
    6,930.14x = 10,397.79 × 4,158.80
  4. Step 4: Simplify right side
    6,930.14x = 43,242,316.05
  5. Step 5: Solve for x
    x = 43,242,316.05/6,930.14
  6. Step 6: Final answer
    x = 6,239.75

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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.