Home / 4,005.54-5,525.70-2,679.60

Finding the Fourth Proportional to 4,005.54, 5,525.70 and 2,679.60

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Solution

The fourth proportional to 4,005.54, 5,525.70 and 2,679.60 is: 3,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.54 : 5,525.70 = 2,679.60 : x
  2. Step 2: Convert to fraction form
    4,005.54/5,525.70 = 2,679.60/x
  3. Step 3: Cross multiply
    4,005.54x = 5,525.70 × 2,679.60
  4. Step 4: Simplify right side
    4,005.54x = 14,806,665.72
  5. Step 5: Solve for x
    x = 14,806,665.72/4,005.54
  6. Step 6: Final answer
    x = 3,696.55

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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.