Home / 3,078.24-4,252.68-2,290.92

Finding the Fourth Proportional to 3,078.24, 4,252.68 and 2,290.92

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Solution

The fourth proportional to 3,078.24, 4,252.68 and 2,290.92 is: 3,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.24 : 4,252.68 = 2,290.92 : x
  2. Step 2: Convert to fraction form
    3,078.24/4,252.68 = 2,290.92/x
  3. Step 3: Cross multiply
    3,078.24x = 4,252.68 × 2,290.92
  4. Step 4: Simplify right side
    3,078.24x = 9,742,549.67
  5. Step 5: Solve for x
    x = 9,742,549.67/3,078.24
  6. Step 6: Final answer
    x = 3,164.97

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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.