Home / 1,955.32-2,933.01-639.07

Finding the Fourth Proportional to 1,955.32, 2,933.01 and 639.07

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Solution

The fourth proportional to 1,955.32, 2,933.01 and 639.07 is: 958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.32 : 2,933.01 = 639.07 : x
  2. Step 2: Convert to fraction form
    1,955.32/2,933.01 = 639.07/x
  3. Step 3: Cross multiply
    1,955.32x = 2,933.01 × 639.07
  4. Step 4: Simplify right side
    1,955.32x = 1,874,398.70
  5. Step 5: Solve for x
    x = 1,874,398.70/1,955.32
  6. Step 6: Final answer
    x = 958.61

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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.