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Finding the Fourth Proportional to 6,800.70, 10,201.17 and 1,870.31

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Solution

The fourth proportional to 6,800.70, 10,201.17 and 1,870.31 is: 2,805.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.70 : 10,201.17 = 1,870.31 : x
  2. Step 2: Convert to fraction form
    6,800.70/10,201.17 = 1,870.31/x
  3. Step 3: Cross multiply
    6,800.70x = 10,201.17 × 1,870.31
  4. Step 4: Simplify right side
    6,800.70x = 19,079,299.26
  5. Step 5: Solve for x
    x = 19,079,299.26/6,800.70
  6. Step 6: Final answer
    x = 2,805.49

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Half scale
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Double scale
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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.