Home / 2,121.18-3,183.01-888.49

Finding the Fourth Proportional to 2,121.18, 3,183.01 and 888.49

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Solution

The fourth proportional to 2,121.18, 3,183.01 and 888.49 is: 1,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.18 : 3,183.01 = 888.49 : x
  2. Step 2: Convert to fraction form
    2,121.18/3,183.01 = 888.49/x
  3. Step 3: Cross multiply
    2,121.18x = 3,183.01 × 888.49
  4. Step 4: Simplify right side
    2,121.18x = 2,828,066.82
  5. Step 5: Solve for x
    x = 2,828,066.82/2,121.18
  6. Step 6: Final answer
    x = 1,333.25

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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.