Home / 2,089.19-3,121.53-2,016.54

Finding the Fourth Proportional to 2,089.19, 3,121.53 and 2,016.54

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Solution

The fourth proportional to 2,089.19, 3,121.53 and 2,016.54 is: 3,012.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.19 : 3,121.53 = 2,016.54 : x
  2. Step 2: Convert to fraction form
    2,089.19/3,121.53 = 2,016.54/x
  3. Step 3: Cross multiply
    2,089.19x = 3,121.53 × 2,016.54
  4. Step 4: Simplify right side
    2,089.19x = 6,294,690.11
  5. Step 5: Solve for x
    x = 6,294,690.11/2,089.19
  6. Step 6: Final answer
    x = 3,012.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.