Home / 3,961.40-5,466.60-2,543.12

Finding the Fourth Proportional to 3,961.40, 5,466.60 and 2,543.12

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Solution

The fourth proportional to 3,961.40, 5,466.60 and 2,543.12 is: 3,509.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.40 : 5,466.60 = 2,543.12 : x
  2. Step 2: Convert to fraction form
    3,961.40/5,466.60 = 2,543.12/x
  3. Step 3: Cross multiply
    3,961.40x = 5,466.60 × 2,543.12
  4. Step 4: Simplify right side
    3,961.40x = 13,902,219.79
  5. Step 5: Solve for x
    x = 13,902,219.79/3,961.40
  6. Step 6: Final answer
    x = 3,509.42

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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.