Home / 6,734.20-10,102.40-1,990.84

Finding the Fourth Proportional to 6,734.20, 10,102.40 and 1,990.84

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Solution

The fourth proportional to 6,734.20, 10,102.40 and 1,990.84 is: 2,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,734.20 : 10,102.40 = 1,990.84 : x
  2. Step 2: Convert to fraction form
    6,734.20/10,102.40 = 1,990.84/x
  3. Step 3: Cross multiply
    6,734.20x = 10,102.40 × 1,990.84
  4. Step 4: Simplify right side
    6,734.20x = 20,112,262.02
  5. Step 5: Solve for x
    x = 20,112,262.02/6,734.20
  6. Step 6: Final answer
    x = 2,986.59

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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.