Home / 6,821.24-9,410.56-3,948.07

Finding the Fourth Proportional to 6,821.24, 9,410.56 and 3,948.07

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Solution

The fourth proportional to 6,821.24, 9,410.56 and 3,948.07 is: 5,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.24 : 9,410.56 = 3,948.07 : x
  2. Step 2: Convert to fraction form
    6,821.24/9,410.56 = 3,948.07/x
  3. Step 3: Cross multiply
    6,821.24x = 9,410.56 × 3,948.07
  4. Step 4: Simplify right side
    6,821.24x = 37,153,549.62
  5. Step 5: Solve for x
    x = 37,153,549.62/6,821.24
  6. Step 6: Final answer
    x = 5,446.74

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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.