Home / 7,942.78-10,961.05-4,406.00

Finding the Fourth Proportional to 7,942.78, 10,961.05 and 4,406.00

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Solution

The fourth proportional to 7,942.78, 10,961.05 and 4,406.00 is: 6,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.78 : 10,961.05 = 4,406.00 : x
  2. Step 2: Convert to fraction form
    7,942.78/10,961.05 = 4,406.00/x
  3. Step 3: Cross multiply
    7,942.78x = 10,961.05 × 4,406.00
  4. Step 4: Simplify right side
    7,942.78x = 48,294,344.23
  5. Step 5: Solve for x
    x = 48,294,344.23/7,942.78
  6. Step 6: Final answer
    x = 6,080.28

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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.