Home / 2,639.30-3,641.09-1,854.41

Finding the Fourth Proportional to 2,639.30, 3,641.09 and 1,854.41

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Solution

The fourth proportional to 2,639.30, 3,641.09 and 1,854.41 is: 2,558.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.30 : 3,641.09 = 1,854.41 : x
  2. Step 2: Convert to fraction form
    2,639.30/3,641.09 = 1,854.41/x
  3. Step 3: Cross multiply
    2,639.30x = 3,641.09 × 1,854.41
  4. Step 4: Simplify right side
    2,639.30x = 6,752,046.23
  5. Step 5: Solve for x
    x = 6,752,046.23/2,639.30
  6. Step 6: Final answer
    x = 2,558.28

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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.