Home / 2,787.34-3,845.42-1,668.32

Finding the Fourth Proportional to 2,787.34, 3,845.42 and 1,668.32

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Solution

The fourth proportional to 2,787.34, 3,845.42 and 1,668.32 is: 2,301.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.34 : 3,845.42 = 1,668.32 : x
  2. Step 2: Convert to fraction form
    2,787.34/3,845.42 = 1,668.32/x
  3. Step 3: Cross multiply
    2,787.34x = 3,845.42 × 1,668.32
  4. Step 4: Simplify right side
    2,787.34x = 6,415,391.09
  5. Step 5: Solve for x
    x = 6,415,391.09/2,787.34
  6. Step 6: Final answer
    x = 2,301.62

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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.