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Finding the Fourth Proportional to 6,661.48, 9,993.99 and 2,278.93

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Solution

The fourth proportional to 6,661.48, 9,993.99 and 2,278.93 is: 3,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.48 : 9,993.99 = 2,278.93 : x
  2. Step 2: Convert to fraction form
    6,661.48/9,993.99 = 2,278.93/x
  3. Step 3: Cross multiply
    6,661.48x = 9,993.99 × 2,278.93
  4. Step 4: Simplify right side
    6,661.48x = 22,775,603.63
  5. Step 5: Solve for x
    x = 22,775,603.63/6,661.48
  6. Step 6: Final answer
    x = 3,419.00

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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.