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Finding the Fourth Proportional to 2,457.62, 3,391.57 and 1,338.62

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Solution

The fourth proportional to 2,457.62, 3,391.57 and 1,338.62 is: 1,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.62 : 3,391.57 = 1,338.62 : x
  2. Step 2: Convert to fraction form
    2,457.62/3,391.57 = 1,338.62/x
  3. Step 3: Cross multiply
    2,457.62x = 3,391.57 × 1,338.62
  4. Step 4: Simplify right side
    2,457.62x = 4,540,015.73
  5. Step 5: Solve for x
    x = 4,540,015.73/2,457.62
  6. Step 6: Final answer
    x = 1,847.32

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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.