Home / 3,078.22-4,247.56-1,751.56

Finding the Fourth Proportional to 3,078.22, 4,247.56 and 1,751.56

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Solution

The fourth proportional to 3,078.22, 4,247.56 and 1,751.56 is: 2,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.22 : 4,247.56 = 1,751.56 : x
  2. Step 2: Convert to fraction form
    3,078.22/4,247.56 = 1,751.56/x
  3. Step 3: Cross multiply
    3,078.22x = 4,247.56 × 1,751.56
  4. Step 4: Simplify right side
    3,078.22x = 7,439,856.19
  5. Step 5: Solve for x
    x = 7,439,856.19/3,078.22
  6. Step 6: Final answer
    x = 2,416.93

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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.