Home / 7,142.41-10,713.66-1,948.33

Finding the Fourth Proportional to 7,142.41, 10,713.66 and 1,948.33

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Solution

The fourth proportional to 7,142.41, 10,713.66 and 1,948.33 is: 2,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.41 : 10,713.66 = 1,948.33 : x
  2. Step 2: Convert to fraction form
    7,142.41/10,713.66 = 1,948.33/x
  3. Step 3: Cross multiply
    7,142.41x = 10,713.66 × 1,948.33
  4. Step 4: Simplify right side
    7,142.41x = 20,873,745.19
  5. Step 5: Solve for x
    x = 20,873,745.19/7,142.41
  6. Step 6: Final answer
    x = 2,922.51

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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.