Home / 4,190.60-6,282.91-1,968.20

Finding the Fourth Proportional to 4,190.60, 6,282.91 and 1,968.20

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Solution

The fourth proportional to 4,190.60, 6,282.91 and 1,968.20 is: 2,950.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.60 : 6,282.91 = 1,968.20 : x
  2. Step 2: Convert to fraction form
    4,190.60/6,282.91 = 1,968.20/x
  3. Step 3: Cross multiply
    4,190.60x = 6,282.91 × 1,968.20
  4. Step 4: Simplify right side
    4,190.60x = 12,365,987.13
  5. Step 5: Solve for x
    x = 12,365,987.13/4,190.60
  6. Step 6: Final answer
    x = 2,950.89

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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.