Home / 6,912.17-10,366.41-1,980.48

Finding the Fourth Proportional to 6,912.17, 10,366.41 and 1,980.48

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Solution

The fourth proportional to 6,912.17, 10,366.41 and 1,980.48 is: 2,970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.17 : 10,366.41 = 1,980.48 : x
  2. Step 2: Convert to fraction form
    6,912.17/10,366.41 = 1,980.48/x
  3. Step 3: Cross multiply
    6,912.17x = 10,366.41 × 1,980.48
  4. Step 4: Simplify right side
    6,912.17x = 20,530,467.68
  5. Step 5: Solve for x
    x = 20,530,467.68/6,912.17
  6. Step 6: Final answer
    x = 2,970.19

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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.