Home / 4,085.31-5,636.10-2,668.55

Finding the Fourth Proportional to 4,085.31, 5,636.10 and 2,668.55

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Solution

The fourth proportional to 4,085.31, 5,636.10 and 2,668.55 is: 3,681.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.31 : 5,636.10 = 2,668.55 : x
  2. Step 2: Convert to fraction form
    4,085.31/5,636.10 = 2,668.55/x
  3. Step 3: Cross multiply
    4,085.31x = 5,636.10 × 2,668.55
  4. Step 4: Simplify right side
    4,085.31x = 15,040,186.47
  5. Step 5: Solve for x
    x = 15,040,186.47/4,085.31
  6. Step 6: Final answer
    x = 3,681.53

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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.