Home / 3,140.76-4,334.22-1,743.42

Finding the Fourth Proportional to 3,140.76, 4,334.22 and 1,743.42

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Solution

The fourth proportional to 3,140.76, 4,334.22 and 1,743.42 is: 2,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.76 : 4,334.22 = 1,743.42 : x
  2. Step 2: Convert to fraction form
    3,140.76/4,334.22 = 1,743.42/x
  3. Step 3: Cross multiply
    3,140.76x = 4,334.22 × 1,743.42
  4. Step 4: Simplify right side
    3,140.76x = 7,556,365.83
  5. Step 5: Solve for x
    x = 7,556,365.83/3,140.76
  6. Step 6: Final answer
    x = 2,405.90

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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.