Home / 7,118.07-9,822.94-3,974.25

Finding the Fourth Proportional to 7,118.07, 9,822.94 and 3,974.25

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Solution

The fourth proportional to 7,118.07, 9,822.94 and 3,974.25 is: 5,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.07 : 9,822.94 = 3,974.25 : x
  2. Step 2: Convert to fraction form
    7,118.07/9,822.94 = 3,974.25/x
  3. Step 3: Cross multiply
    7,118.07x = 9,822.94 × 3,974.25
  4. Step 4: Simplify right side
    7,118.07x = 39,038,819.30
  5. Step 5: Solve for x
    x = 39,038,819.30/7,118.07
  6. Step 6: Final answer
    x = 5,484.47

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.