Home / 3,668.31-5,055.26-2,618.55

Finding the Fourth Proportional to 3,668.31, 5,055.26 and 2,618.55

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Solution

The fourth proportional to 3,668.31, 5,055.26 and 2,618.55 is: 3,608.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.31 : 5,055.26 = 2,618.55 : x
  2. Step 2: Convert to fraction form
    3,668.31/5,055.26 = 2,618.55/x
  3. Step 3: Cross multiply
    3,668.31x = 5,055.26 × 2,618.55
  4. Step 4: Simplify right side
    3,668.31x = 13,237,432.34
  5. Step 5: Solve for x
    x = 13,237,432.34/3,668.31
  6. Step 6: Final answer
    x = 3,608.60

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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.