Home / 1,415.08-2,108.03-1,372.09

Finding the Fourth Proportional to 1,415.08, 2,108.03 and 1,372.09

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Solution

The fourth proportional to 1,415.08, 2,108.03 and 1,372.09 is: 2,043.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.08 : 2,108.03 = 1,372.09 : x
  2. Step 2: Convert to fraction form
    1,415.08/2,108.03 = 1,372.09/x
  3. Step 3: Cross multiply
    1,415.08x = 2,108.03 × 1,372.09
  4. Step 4: Simplify right side
    1,415.08x = 2,892,406.88
  5. Step 5: Solve for x
    x = 2,892,406.88/1,415.08
  6. Step 6: Final answer
    x = 2,043.99

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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.