Home / 4,665.72-6,997.32-1,378.56

Finding the Fourth Proportional to 4,665.72, 6,997.32 and 1,378.56

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Solution

The fourth proportional to 4,665.72, 6,997.32 and 1,378.56 is: 2,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,665.72 : 6,997.32 = 1,378.56 : x
  2. Step 2: Convert to fraction form
    4,665.72/6,997.32 = 1,378.56/x
  3. Step 3: Cross multiply
    4,665.72x = 6,997.32 × 1,378.56
  4. Step 4: Simplify right side
    4,665.72x = 9,646,225.46
  5. Step 5: Solve for x
    x = 9,646,225.46/4,665.72
  6. Step 6: Final answer
    x = 2,067.47

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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.