Home / 3,015.60-4,163-2,071.12

Finding the Fourth Proportional to 3,015.60, 4,163 and 2,071.12

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Solution

The fourth proportional to 3,015.60, 4,163 and 2,071.12 is: 2,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.60 : 4,163 = 2,071.12 : x
  2. Step 2: Convert to fraction form
    3,015.60/4,163 = 2,071.12/x
  3. Step 3: Cross multiply
    3,015.60x = 4,163 × 2,071.12
  4. Step 4: Simplify right side
    3,015.60x = 8,622,072.56
  5. Step 5: Solve for x
    x = 8,622,072.56/3,015.60
  6. Step 6: Final answer
    x = 2,859.16

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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.