Home / 2,285.94-3,154.25-1,291.19

Finding the Fourth Proportional to 2,285.94, 3,154.25 and 1,291.19

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Solution

The fourth proportional to 2,285.94, 3,154.25 and 1,291.19 is: 1,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.94 : 3,154.25 = 1,291.19 : x
  2. Step 2: Convert to fraction form
    2,285.94/3,154.25 = 1,291.19/x
  3. Step 3: Cross multiply
    2,285.94x = 3,154.25 × 1,291.19
  4. Step 4: Simplify right side
    2,285.94x = 4,072,736.06
  5. Step 5: Solve for x
    x = 4,072,736.06/2,285.94
  6. Step 6: Final answer
    x = 1,781.65

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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.