Home / 3,630.54-5,013-2,789.94

Finding the Fourth Proportional to 3,630.54, 5,013 and 2,789.94

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Solution

The fourth proportional to 3,630.54, 5,013 and 2,789.94 is: 3,852.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.54 : 5,013 = 2,789.94 : x
  2. Step 2: Convert to fraction form
    3,630.54/5,013 = 2,789.94/x
  3. Step 3: Cross multiply
    3,630.54x = 5,013 × 2,789.94
  4. Step 4: Simplify right side
    3,630.54x = 13,985,969.22
  5. Step 5: Solve for x
    x = 13,985,969.22/3,630.54
  6. Step 6: Final answer
    x = 3,852.31

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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.