Home / 3,112.08-4,671.05-2,072.81

Finding the Fourth Proportional to 3,112.08, 4,671.05 and 2,072.81

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Solution

The fourth proportional to 3,112.08, 4,671.05 and 2,072.81 is: 3,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.08 : 4,671.05 = 2,072.81 : x
  2. Step 2: Convert to fraction form
    3,112.08/4,671.05 = 2,072.81/x
  3. Step 3: Cross multiply
    3,112.08x = 4,671.05 × 2,072.81
  4. Step 4: Simplify right side
    3,112.08x = 9,682,210.83
  5. Step 5: Solve for x
    x = 9,682,210.83/3,112.08
  6. Step 6: Final answer
    x = 3,111.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.