Home / 3,142.68-4,336.74-1,745.40

Finding the Fourth Proportional to 3,142.68, 4,336.74 and 1,745.40

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Solution

The fourth proportional to 3,142.68, 4,336.74 and 1,745.40 is: 2,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.68 : 4,336.74 = 1,745.40 : x
  2. Step 2: Convert to fraction form
    3,142.68/4,336.74 = 1,745.40/x
  3. Step 3: Cross multiply
    3,142.68x = 4,336.74 × 1,745.40
  4. Step 4: Simplify right side
    3,142.68x = 7,569,346.00
  5. Step 5: Solve for x
    x = 7,569,346.00/3,142.68
  6. Step 6: Final answer
    x = 2,408.56

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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.