Home / 3,109.89-4,664.33-1,260.93

Finding the Fourth Proportional to 3,109.89, 4,664.33 and 1,260.93

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Solution

The fourth proportional to 3,109.89, 4,664.33 and 1,260.93 is: 1,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.89 : 4,664.33 = 1,260.93 : x
  2. Step 2: Convert to fraction form
    3,109.89/4,664.33 = 1,260.93/x
  3. Step 3: Cross multiply
    3,109.89x = 4,664.33 × 1,260.93
  4. Step 4: Simplify right side
    3,109.89x = 5,881,392.05
  5. Step 5: Solve for x
    x = 5,881,392.05/3,109.89
  6. Step 6: Final answer
    x = 1,891.19

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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.