Home / 2,382.21-3,288.60-1,586.86

Finding the Fourth Proportional to 2,382.21, 3,288.60 and 1,586.86

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Solution

The fourth proportional to 2,382.21, 3,288.60 and 1,586.86 is: 2,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.21 : 3,288.60 = 1,586.86 : x
  2. Step 2: Convert to fraction form
    2,382.21/3,288.60 = 1,586.86/x
  3. Step 3: Cross multiply
    2,382.21x = 3,288.60 × 1,586.86
  4. Step 4: Simplify right side
    2,382.21x = 5,218,539.57
  5. Step 5: Solve for x
    x = 5,218,539.57/2,382.21
  6. Step 6: Final answer
    x = 2,190.63

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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.