Home / 2,129.27-3,190.23-1,718.60

Finding the Fourth Proportional to 2,129.27, 3,190.23 and 1,718.60

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Solution

The fourth proportional to 2,129.27, 3,190.23 and 1,718.60 is: 2,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.27 : 3,190.23 = 1,718.60 : x
  2. Step 2: Convert to fraction form
    2,129.27/3,190.23 = 1,718.60/x
  3. Step 3: Cross multiply
    2,129.27x = 3,190.23 × 1,718.60
  4. Step 4: Simplify right side
    2,129.27x = 5,482,713.33
  5. Step 5: Solve for x
    x = 5,482,713.33/2,129.27
  6. Step 6: Final answer
    x = 2,574.93

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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.