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Finding the Fourth Proportional to 3,750.84, 5,179.95 and 3,009.69

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Solution

The fourth proportional to 3,750.84, 5,179.95 and 3,009.69 is: 4,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.84 : 5,179.95 = 3,009.69 : x
  2. Step 2: Convert to fraction form
    3,750.84/5,179.95 = 3,009.69/x
  3. Step 3: Cross multiply
    3,750.84x = 5,179.95 × 3,009.69
  4. Step 4: Simplify right side
    3,750.84x = 15,590,043.72
  5. Step 5: Solve for x
    x = 15,590,043.72/3,750.84
  6. Step 6: Final answer
    x = 4,156.41

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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.