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Finding the Fourth Proportional to 7,789.84, 10,750.13 and 4,253.19

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Solution

The fourth proportional to 7,789.84, 10,750.13 and 4,253.19 is: 5,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.84 : 10,750.13 = 4,253.19 : x
  2. Step 2: Convert to fraction form
    7,789.84/10,750.13 = 4,253.19/x
  3. Step 3: Cross multiply
    7,789.84x = 10,750.13 × 4,253.19
  4. Step 4: Simplify right side
    7,789.84x = 45,722,345.41
  5. Step 5: Solve for x
    x = 45,722,345.41/7,789.84
  6. Step 6: Final answer
    x = 5,869.48

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