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Finding the Fourth Proportional to 6,911.83, 10,368.06 and 1,982.17

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Solution

The fourth proportional to 6,911.83, 10,368.06 and 1,982.17 is: 2,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.83 : 10,368.06 = 1,982.17 : x
  2. Step 2: Convert to fraction form
    6,911.83/10,368.06 = 1,982.17/x
  3. Step 3: Cross multiply
    6,911.83x = 10,368.06 × 1,982.17
  4. Step 4: Simplify right side
    6,911.83x = 20,551,257.49
  5. Step 5: Solve for x
    x = 20,551,257.49/6,911.83
  6. Step 6: Final answer
    x = 2,973.35

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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.