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Finding the Fourth Proportional to 2,319.98, 3,479.82 and 676.48

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Solution

The fourth proportional to 2,319.98, 3,479.82 and 676.48 is: 1,014.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.98 : 3,479.82 = 676.48 : x
  2. Step 2: Convert to fraction form
    2,319.98/3,479.82 = 676.48/x
  3. Step 3: Cross multiply
    2,319.98x = 3,479.82 × 676.48
  4. Step 4: Simplify right side
    2,319.98x = 2,354,028.63
  5. Step 5: Solve for x
    x = 2,354,028.63/2,319.98
  6. Step 6: Final answer
    x = 1,014.68

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1.5x scale

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.