Home / 2,803.03-4,205.45-1,415.21

Finding the Fourth Proportional to 2,803.03, 4,205.45 and 1,415.21

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Solution

The fourth proportional to 2,803.03, 4,205.45 and 1,415.21 is: 2,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.03 : 4,205.45 = 1,415.21 : x
  2. Step 2: Convert to fraction form
    2,803.03/4,205.45 = 1,415.21/x
  3. Step 3: Cross multiply
    2,803.03x = 4,205.45 × 1,415.21
  4. Step 4: Simplify right side
    2,803.03x = 5,951,577.41
  5. Step 5: Solve for x
    x = 5,951,577.41/2,803.03
  6. Step 6: Final answer
    x = 2,123.27

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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.