Home / 3,078.12-4,247.88-1,751.97

Finding the Fourth Proportional to 3,078.12, 4,247.88 and 1,751.97

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Solution

The fourth proportional to 3,078.12, 4,247.88 and 1,751.97 is: 2,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.12 : 4,247.88 = 1,751.97 : x
  2. Step 2: Convert to fraction form
    3,078.12/4,247.88 = 1,751.97/x
  3. Step 3: Cross multiply
    3,078.12x = 4,247.88 × 1,751.97
  4. Step 4: Simplify right side
    3,078.12x = 7,442,158.32
  5. Step 5: Solve for x
    x = 7,442,158.32/3,078.12
  6. Step 6: Final answer
    x = 2,417.76

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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.