Home / 3,946.34-5,442.36-2,453.78

Finding the Fourth Proportional to 3,946.34, 5,442.36 and 2,453.78

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Solution

The fourth proportional to 3,946.34, 5,442.36 and 2,453.78 is: 3,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.34 : 5,442.36 = 2,453.78 : x
  2. Step 2: Convert to fraction form
    3,946.34/5,442.36 = 2,453.78/x
  3. Step 3: Cross multiply
    3,946.34x = 5,442.36 × 2,453.78
  4. Step 4: Simplify right side
    3,946.34x = 13,354,354.12
  5. Step 5: Solve for x
    x = 13,354,354.12/3,946.34
  6. Step 6: Final answer
    x = 3,383.98

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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.