Home / 2,317.86-3,198.68-1,323.20

Finding the Fourth Proportional to 2,317.86, 3,198.68 and 1,323.20

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Solution

The fourth proportional to 2,317.86, 3,198.68 and 1,323.20 is: 1,826.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.86 : 3,198.68 = 1,323.20 : x
  2. Step 2: Convert to fraction form
    2,317.86/3,198.68 = 1,323.20/x
  3. Step 3: Cross multiply
    2,317.86x = 3,198.68 × 1,323.20
  4. Step 4: Simplify right side
    2,317.86x = 4,232,470.77
  5. Step 5: Solve for x
    x = 4,232,470.77/2,317.86
  6. Step 6: Final answer
    x = 1,826.03

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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.