Home / 2,641.45-3,643.39-1,646.36

Finding the Fourth Proportional to 2,641.45, 3,643.39 and 1,646.36

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Solution

The fourth proportional to 2,641.45, 3,643.39 and 1,646.36 is: 2,270.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.45 : 3,643.39 = 1,646.36 : x
  2. Step 2: Convert to fraction form
    2,641.45/3,643.39 = 1,646.36/x
  3. Step 3: Cross multiply
    2,641.45x = 3,643.39 × 1,646.36
  4. Step 4: Simplify right side
    2,641.45x = 5,998,342.73
  5. Step 5: Solve for x
    x = 5,998,342.73/2,641.45
  6. Step 6: Final answer
    x = 2,270.85

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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.