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Finding the Fourth Proportional to 6,783.06, 9,360.72 and 3,798.87

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Solution

The fourth proportional to 6,783.06, 9,360.72 and 3,798.87 is: 5,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783.06 : 9,360.72 = 3,798.87 : x
  2. Step 2: Convert to fraction form
    6,783.06/9,360.72 = 3,798.87/x
  3. Step 3: Cross multiply
    6,783.06x = 9,360.72 × 3,798.87
  4. Step 4: Simplify right side
    6,783.06x = 35,560,092.59
  5. Step 5: Solve for x
    x = 35,560,092.59/6,783.06
  6. Step 6: Final answer
    x = 5,242.49

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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.