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Finding the Fourth Proportional to 1,805.34, 2,479.36 and 1,676.85

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Solution

The fourth proportional to 1,805.34, 2,479.36 and 1,676.85 is: 2,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.34 : 2,479.36 = 1,676.85 : x
  2. Step 2: Convert to fraction form
    1,805.34/2,479.36 = 1,676.85/x
  3. Step 3: Cross multiply
    1,805.34x = 2,479.36 × 1,676.85
  4. Step 4: Simplify right side
    1,805.34x = 4,157,518.42
  5. Step 5: Solve for x
    x = 4,157,518.42/1,805.34
  6. Step 6: Final answer
    x = 2,302.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.