Home / 2,333.20-3,219.24-1,338.16

Finding the Fourth Proportional to 2,333.20, 3,219.24 and 1,338.16

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Solution

The fourth proportional to 2,333.20, 3,219.24 and 1,338.16 is: 1,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.20 : 3,219.24 = 1,338.16 : x
  2. Step 2: Convert to fraction form
    2,333.20/3,219.24 = 1,338.16/x
  3. Step 3: Cross multiply
    2,333.20x = 3,219.24 × 1,338.16
  4. Step 4: Simplify right side
    2,333.20x = 4,307,858.20
  5. Step 5: Solve for x
    x = 4,307,858.20/2,333.20
  6. Step 6: Final answer
    x = 1,846.33

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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.