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Finding the Fourth Proportional to 6,860.09, 10,290.14 and 1,930.13

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Solution

The fourth proportional to 6,860.09, 10,290.14 and 1,930.13 is: 2,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.09 : 10,290.14 = 1,930.13 : x
  2. Step 2: Convert to fraction form
    6,860.09/10,290.14 = 1,930.13/x
  3. Step 3: Cross multiply
    6,860.09x = 10,290.14 × 1,930.13
  4. Step 4: Simplify right side
    6,860.09x = 19,861,292.64
  5. Step 5: Solve for x
    x = 19,861,292.64/6,860.09
  6. Step 6: Final answer
    x = 2,895.19

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Half scale
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Double scale
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Similar ratio
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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.