Home / 1,536.80-2,121.25-1,458.44

Finding the Fourth Proportional to 1,536.80, 2,121.25 and 1,458.44

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Solution

The fourth proportional to 1,536.80, 2,121.25 and 1,458.44 is: 2,013.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.80 : 2,121.25 = 1,458.44 : x
  2. Step 2: Convert to fraction form
    1,536.80/2,121.25 = 1,458.44/x
  3. Step 3: Cross multiply
    1,536.80x = 2,121.25 × 1,458.44
  4. Step 4: Simplify right side
    1,536.80x = 3,093,715.85
  5. Step 5: Solve for x
    x = 3,093,715.85/1,536.80
  6. Step 6: Final answer
    x = 2,013.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.