Home / 3,411.09-5,115.72-1,190.07

Finding the Fourth Proportional to 3,411.09, 5,115.72 and 1,190.07

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Solution

The fourth proportional to 3,411.09, 5,115.72 and 1,190.07 is: 1,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.09 : 5,115.72 = 1,190.07 : x
  2. Step 2: Convert to fraction form
    3,411.09/5,115.72 = 1,190.07/x
  3. Step 3: Cross multiply
    3,411.09x = 5,115.72 × 1,190.07
  4. Step 4: Simplify right side
    3,411.09x = 6,088,064.90
  5. Step 5: Solve for x
    x = 6,088,064.90/3,411.09
  6. Step 6: Final answer
    x = 1,784.79

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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.