Home / 2,078.79-2,868.60-1,193.97

Finding the Fourth Proportional to 2,078.79, 2,868.60 and 1,193.97

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Solution

The fourth proportional to 2,078.79, 2,868.60 and 1,193.97 is: 1,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.79 : 2,868.60 = 1,193.97 : x
  2. Step 2: Convert to fraction form
    2,078.79/2,868.60 = 1,193.97/x
  3. Step 3: Cross multiply
    2,078.79x = 2,868.60 × 1,193.97
  4. Step 4: Simplify right side
    2,078.79x = 3,425,022.34
  5. Step 5: Solve for x
    x = 3,425,022.34/2,078.79
  6. Step 6: Final answer
    x = 1,647.60

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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.