Home / 6,912.40-10,370.19-1,982.08

Finding the Fourth Proportional to 6,912.40, 10,370.19 and 1,982.08

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Solution

The fourth proportional to 6,912.40, 10,370.19 and 1,982.08 is: 2,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.40 : 10,370.19 = 1,982.08 : x
  2. Step 2: Convert to fraction form
    6,912.40/10,370.19 = 1,982.08/x
  3. Step 3: Cross multiply
    6,912.40x = 10,370.19 × 1,982.08
  4. Step 4: Simplify right side
    6,912.40x = 20,554,546.20
  5. Step 5: Solve for x
    x = 20,554,546.20/6,912.40
  6. Step 6: Final answer
    x = 2,973.58

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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.