Home / 3,942.18-5,439.48-2,370.30

Finding the Fourth Proportional to 3,942.18, 5,439.48 and 2,370.30

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Solution

The fourth proportional to 3,942.18, 5,439.48 and 2,370.30 is: 3,270.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.18 : 5,439.48 = 2,370.30 : x
  2. Step 2: Convert to fraction form
    3,942.18/5,439.48 = 2,370.30/x
  3. Step 3: Cross multiply
    3,942.18x = 5,439.48 × 2,370.30
  4. Step 4: Simplify right side
    3,942.18x = 12,893,199.44
  5. Step 5: Solve for x
    x = 12,893,199.44/3,942.18
  6. Step 6: Final answer
    x = 3,270.58

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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.