Home / 2,639.36-3,641.80-1,591.48

Finding the Fourth Proportional to 2,639.36, 3,641.80 and 1,591.48

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Solution

The fourth proportional to 2,639.36, 3,641.80 and 1,591.48 is: 2,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.36 : 3,641.80 = 1,591.48 : x
  2. Step 2: Convert to fraction form
    2,639.36/3,641.80 = 1,591.48/x
  3. Step 3: Cross multiply
    2,639.36x = 3,641.80 × 1,591.48
  4. Step 4: Simplify right side
    2,639.36x = 5,795,851.86
  5. Step 5: Solve for x
    x = 5,795,851.86/2,639.36
  6. Step 6: Final answer
    x = 2,195.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.