Home / 3,962.40-5,942.16-1,188.48

Finding the Fourth Proportional to 3,962.40, 5,942.16 and 1,188.48

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Solution

The fourth proportional to 3,962.40, 5,942.16 and 1,188.48 is: 1,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.40 : 5,942.16 = 1,188.48 : x
  2. Step 2: Convert to fraction form
    3,962.40/5,942.16 = 1,188.48/x
  3. Step 3: Cross multiply
    3,962.40x = 5,942.16 × 1,188.48
  4. Step 4: Simplify right side
    3,962.40x = 7,062,138.32
  5. Step 5: Solve for x
    x = 7,062,138.32/3,962.40
  6. Step 6: Final answer
    x = 1,782.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.