Home / 4,129.65-6,195.40-1,208.18

Finding the Fourth Proportional to 4,129.65, 6,195.40 and 1,208.18

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Solution

The fourth proportional to 4,129.65, 6,195.40 and 1,208.18 is: 1,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.65 : 6,195.40 = 1,208.18 : x
  2. Step 2: Convert to fraction form
    4,129.65/6,195.40 = 1,208.18/x
  3. Step 3: Cross multiply
    4,129.65x = 6,195.40 × 1,208.18
  4. Step 4: Simplify right side
    4,129.65x = 7,485,170.84
  5. Step 5: Solve for x
    x = 7,485,170.84/4,129.65
  6. Step 6: Final answer
    x = 1,812.54

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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.