Home / 2,317.16-3,198.18-1,621.80

Finding the Fourth Proportional to 2,317.16, 3,198.18 and 1,621.80

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Solution

The fourth proportional to 2,317.16, 3,198.18 and 1,621.80 is: 2,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.16 : 3,198.18 = 1,621.80 : x
  2. Step 2: Convert to fraction form
    2,317.16/3,198.18 = 1,621.80/x
  3. Step 3: Cross multiply
    2,317.16x = 3,198.18 × 1,621.80
  4. Step 4: Simplify right side
    2,317.16x = 5,186,808.32
  5. Step 5: Solve for x
    x = 5,186,808.32/2,317.16
  6. Step 6: Final answer
    x = 2,238.43

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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.