Home / 3,140.68-4,334.16-1,743.46

Finding the Fourth Proportional to 3,140.68, 4,334.16 and 1,743.46

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Solution

The fourth proportional to 3,140.68, 4,334.16 and 1,743.46 is: 2,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.68 : 4,334.16 = 1,743.46 : x
  2. Step 2: Convert to fraction form
    3,140.68/4,334.16 = 1,743.46/x
  3. Step 3: Cross multiply
    3,140.68x = 4,334.16 × 1,743.46
  4. Step 4: Simplify right side
    3,140.68x = 7,556,434.59
  5. Step 5: Solve for x
    x = 7,556,434.59/3,140.68
  6. Step 6: Final answer
    x = 2,405.99

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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.