Home / 3,081.72-4,252.68-1,886.30

Finding the Fourth Proportional to 3,081.72, 4,252.68 and 1,886.30

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Solution

The fourth proportional to 3,081.72, 4,252.68 and 1,886.30 is: 2,603.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.72 : 4,252.68 = 1,886.30 : x
  2. Step 2: Convert to fraction form
    3,081.72/4,252.68 = 1,886.30/x
  3. Step 3: Cross multiply
    3,081.72x = 4,252.68 × 1,886.30
  4. Step 4: Simplify right side
    3,081.72x = 8,021,830.28
  5. Step 5: Solve for x
    x = 8,021,830.28/3,081.72
  6. Step 6: Final answer
    x = 2,603.04

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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.