Home / 1,676.35-2,311.83-1,108.95

Finding the Fourth Proportional to 1,676.35, 2,311.83 and 1,108.95

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Solution

The fourth proportional to 1,676.35, 2,311.83 and 1,108.95 is: 1,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.35 : 2,311.83 = 1,108.95 : x
  2. Step 2: Convert to fraction form
    1,676.35/2,311.83 = 1,108.95/x
  3. Step 3: Cross multiply
    1,676.35x = 2,311.83 × 1,108.95
  4. Step 4: Simplify right side
    1,676.35x = 2,563,703.88
  5. Step 5: Solve for x
    x = 2,563,703.88/1,676.35
  6. Step 6: Final answer
    x = 1,529.34

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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.