Home / 3,081.45-4,252.55-1,886.06

Finding the Fourth Proportional to 3,081.45, 4,252.55 and 1,886.06

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Solution

The fourth proportional to 3,081.45, 4,252.55 and 1,886.06 is: 2,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.45 : 4,252.55 = 1,886.06 : x
  2. Step 2: Convert to fraction form
    3,081.45/4,252.55 = 1,886.06/x
  3. Step 3: Cross multiply
    3,081.45x = 4,252.55 × 1,886.06
  4. Step 4: Simplify right side
    3,081.45x = 8,020,564.45
  5. Step 5: Solve for x
    x = 8,020,564.45/3,081.45
  6. Step 6: Final answer
    x = 2,602.85

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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.