Home / 2,045.15-3,068.79-1,121.14

Finding the Fourth Proportional to 2,045.15, 3,068.79 and 1,121.14

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Solution

The fourth proportional to 2,045.15, 3,068.79 and 1,121.14 is: 1,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.15 : 3,068.79 = 1,121.14 : x
  2. Step 2: Convert to fraction form
    2,045.15/3,068.79 = 1,121.14/x
  3. Step 3: Cross multiply
    2,045.15x = 3,068.79 × 1,121.14
  4. Step 4: Simplify right side
    2,045.15x = 3,440,542.85
  5. Step 5: Solve for x
    x = 3,440,542.85/2,045.15
  6. Step 6: Final answer
    x = 1,682.29

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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.