Home / 1,444.35-2,164.71-621.66

Finding the Fourth Proportional to 1,444.35, 2,164.71 and 621.66

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Solution

The fourth proportional to 1,444.35, 2,164.71 and 621.66 is: 931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.35 : 2,164.71 = 621.66 : x
  2. Step 2: Convert to fraction form
    1,444.35/2,164.71 = 621.66/x
  3. Step 3: Cross multiply
    1,444.35x = 2,164.71 × 621.66
  4. Step 4: Simplify right side
    1,444.35x = 1,345,713.62
  5. Step 5: Solve for x
    x = 1,345,713.62/1,444.35
  6. Step 6: Final answer
    x = 931.71

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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.