Home / 2,338.42-3,223.65-1,918.18

Finding the Fourth Proportional to 2,338.42, 3,223.65 and 1,918.18

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Solution

The fourth proportional to 2,338.42, 3,223.65 and 1,918.18 is: 2,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.42 : 3,223.65 = 1,918.18 : x
  2. Step 2: Convert to fraction form
    2,338.42/3,223.65 = 1,918.18/x
  3. Step 3: Cross multiply
    2,338.42x = 3,223.65 × 1,918.18
  4. Step 4: Simplify right side
    2,338.42x = 6,183,540.96
  5. Step 5: Solve for x
    x = 6,183,540.96/2,338.42
  6. Step 6: Final answer
    x = 2,644.32

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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.