Home / 7,178.39-10,767.57-1,984.25

Finding the Fourth Proportional to 7,178.39, 10,767.57 and 1,984.25

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Solution

The fourth proportional to 7,178.39, 10,767.57 and 1,984.25 is: 2,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.39 : 10,767.57 = 1,984.25 : x
  2. Step 2: Convert to fraction form
    7,178.39/10,767.57 = 1,984.25/x
  3. Step 3: Cross multiply
    7,178.39x = 10,767.57 × 1,984.25
  4. Step 4: Simplify right side
    7,178.39x = 21,365,550.77
  5. Step 5: Solve for x
    x = 21,365,550.77/7,178.39
  6. Step 6: Final answer
    x = 2,976.37

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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.