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Finding the Fourth Proportional to 2,676.78, 4,014.45 and 945.18

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Solution

The fourth proportional to 2,676.78, 4,014.45 and 945.18 is: 1,417.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.78 : 4,014.45 = 945.18 : x
  2. Step 2: Convert to fraction form
    2,676.78/4,014.45 = 945.18/x
  3. Step 3: Cross multiply
    2,676.78x = 4,014.45 × 945.18
  4. Step 4: Simplify right side
    2,676.78x = 3,794,377.85
  5. Step 5: Solve for x
    x = 3,794,377.85/2,676.78
  6. Step 6: Final answer
    x = 1,417.52

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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.