Home / 2,012.81-3,015.97-1,088.80

Finding the Fourth Proportional to 2,012.81, 3,015.97 and 1,088.80

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Solution

The fourth proportional to 2,012.81, 3,015.97 and 1,088.80 is: 1,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.81 : 3,015.97 = 1,088.80 : x
  2. Step 2: Convert to fraction form
    2,012.81/3,015.97 = 1,088.80/x
  3. Step 3: Cross multiply
    2,012.81x = 3,015.97 × 1,088.80
  4. Step 4: Simplify right side
    2,012.81x = 3,283,788.14
  5. Step 5: Solve for x
    x = 3,283,788.14/2,012.81
  6. Step 6: Final answer
    x = 1,631.44

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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.