Home / 3,140.72-4,334.16-1,743.48

Finding the Fourth Proportional to 3,140.72, 4,334.16 and 1,743.48

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Solution

The fourth proportional to 3,140.72, 4,334.16 and 1,743.48 is: 2,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.72 : 4,334.16 = 1,743.48 : x
  2. Step 2: Convert to fraction form
    3,140.72/4,334.16 = 1,743.48/x
  3. Step 3: Cross multiply
    3,140.72x = 4,334.16 × 1,743.48
  4. Step 4: Simplify right side
    3,140.72x = 7,556,521.28
  5. Step 5: Solve for x
    x = 7,556,521.28/3,140.72
  6. Step 6: Final answer
    x = 2,405.98

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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.