Home / 1,939.32-2,908.55-552.63

Finding the Fourth Proportional to 1,939.32, 2,908.55 and 552.63

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Solution

The fourth proportional to 1,939.32, 2,908.55 and 552.63 is: 828.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.32 : 2,908.55 = 552.63 : x
  2. Step 2: Convert to fraction form
    1,939.32/2,908.55 = 552.63/x
  3. Step 3: Cross multiply
    1,939.32x = 2,908.55 × 552.63
  4. Step 4: Simplify right side
    1,939.32x = 1,607,350.60
  5. Step 5: Solve for x
    x = 1,607,350.60/1,939.32
  6. Step 6: Final answer
    x = 828.82

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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.