Home / 2,805.91-4,205.16-1,160.19

Finding the Fourth Proportional to 2,805.91, 4,205.16 and 1,160.19

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Solution

The fourth proportional to 2,805.91, 4,205.16 and 1,160.19 is: 1,738.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.91 : 4,205.16 = 1,160.19 : x
  2. Step 2: Convert to fraction form
    2,805.91/4,205.16 = 1,160.19/x
  3. Step 3: Cross multiply
    2,805.91x = 4,205.16 × 1,160.19
  4. Step 4: Simplify right side
    2,805.91x = 4,878,784.58
  5. Step 5: Solve for x
    x = 4,878,784.58/2,805.91
  6. Step 6: Final answer
    x = 1,738.75

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1.5x scale

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.