Home / 3,002.78-4,143.34-1,676.44

Finding the Fourth Proportional to 3,002.78, 4,143.34 and 1,676.44

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Solution

The fourth proportional to 3,002.78, 4,143.34 and 1,676.44 is: 2,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.78 : 4,143.34 = 1,676.44 : x
  2. Step 2: Convert to fraction form
    3,002.78/4,143.34 = 1,676.44/x
  3. Step 3: Cross multiply
    3,002.78x = 4,143.34 × 1,676.44
  4. Step 4: Simplify right side
    3,002.78x = 6,946,060.91
  5. Step 5: Solve for x
    x = 6,946,060.91/3,002.78
  6. Step 6: Final answer
    x = 2,313.21

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1.5x scale

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.