Home / 6,376.40-9,561.30-1,992.68

Finding the Fourth Proportional to 6,376.40, 9,561.30 and 1,992.68

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Solution

The fourth proportional to 6,376.40, 9,561.30 and 1,992.68 is: 2,987.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.40 : 9,561.30 = 1,992.68 : x
  2. Step 2: Convert to fraction form
    6,376.40/9,561.30 = 1,992.68/x
  3. Step 3: Cross multiply
    6,376.40x = 9,561.30 × 1,992.68
  4. Step 4: Simplify right side
    6,376.40x = 19,052,611.28
  5. Step 5: Solve for x
    x = 19,052,611.28/6,376.40
  6. Step 6: Final answer
    x = 2,987.99

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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.