Home / 1,415.44-2,121.41-1,026.77

Finding the Fourth Proportional to 1,415.44, 2,121.41 and 1,026.77

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Solution

The fourth proportional to 1,415.44, 2,121.41 and 1,026.77 is: 1,538.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.44 : 2,121.41 = 1,026.77 : x
  2. Step 2: Convert to fraction form
    1,415.44/2,121.41 = 1,026.77/x
  3. Step 3: Cross multiply
    1,415.44x = 2,121.41 × 1,026.77
  4. Step 4: Simplify right side
    1,415.44x = 2,178,195.01
  5. Step 5: Solve for x
    x = 2,178,195.01/1,415.44
  6. Step 6: Final answer
    x = 1,538.89

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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.