Home / 3,948.98-5,445.51-3,391.30

Finding the Fourth Proportional to 3,948.98, 5,445.51 and 3,391.30

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Solution

The fourth proportional to 3,948.98, 5,445.51 and 3,391.30 is: 4,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.98 : 5,445.51 = 3,391.30 : x
  2. Step 2: Convert to fraction form
    3,948.98/5,445.51 = 3,391.30/x
  3. Step 3: Cross multiply
    3,948.98x = 5,445.51 × 3,391.30
  4. Step 4: Simplify right side
    3,948.98x = 18,467,330.84
  5. Step 5: Solve for x
    x = 18,467,330.84/3,948.98
  6. Step 6: Final answer
    x = 4,676.48

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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.