Home / 2,639.14-3,642.76-1,591.26

Finding the Fourth Proportional to 2,639.14, 3,642.76 and 1,591.26

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Solution

The fourth proportional to 2,639.14, 3,642.76 and 1,591.26 is: 2,196.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.14 : 3,642.76 = 1,591.26 : x
  2. Step 2: Convert to fraction form
    2,639.14/3,642.76 = 1,591.26/x
  3. Step 3: Cross multiply
    2,639.14x = 3,642.76 × 1,591.26
  4. Step 4: Simplify right side
    2,639.14x = 5,796,578.28
  5. Step 5: Solve for x
    x = 5,796,578.28/2,639.14
  6. Step 6: Final answer
    x = 2,196.39

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1.5x scale

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.