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Finding the Fourth Proportional to 6,614.51, 9,129.96 and 3,783.49

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Solution

The fourth proportional to 6,614.51, 9,129.96 and 3,783.49 is: 5,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,614.51 : 9,129.96 = 3,783.49 : x
  2. Step 2: Convert to fraction form
    6,614.51/9,129.96 = 3,783.49/x
  3. Step 3: Cross multiply
    6,614.51x = 9,129.96 × 3,783.49
  4. Step 4: Simplify right side
    6,614.51x = 34,543,089.54
  5. Step 5: Solve for x
    x = 34,543,089.54/6,614.51
  6. Step 6: Final answer
    x = 5,222.32

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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.