Home / 1,639.14-2,456.83-651.03

Finding the Fourth Proportional to 1,639.14, 2,456.83 and 651.03

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Solution

The fourth proportional to 1,639.14, 2,456.83 and 651.03 is: 975.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.14 : 2,456.83 = 651.03 : x
  2. Step 2: Convert to fraction form
    1,639.14/2,456.83 = 651.03/x
  3. Step 3: Cross multiply
    1,639.14x = 2,456.83 × 651.03
  4. Step 4: Simplify right side
    1,639.14x = 1,599,470.03
  5. Step 5: Solve for x
    x = 1,599,470.03/1,639.14
  6. Step 6: Final answer
    x = 975.80

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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.