Home / 6,910.34-10,366.11-1,980.14

Finding the Fourth Proportional to 6,910.34, 10,366.11 and 1,980.14

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Solution

The fourth proportional to 6,910.34, 10,366.11 and 1,980.14 is: 2,970.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.34 : 10,366.11 = 1,980.14 : x
  2. Step 2: Convert to fraction form
    6,910.34/10,366.11 = 1,980.14/x
  3. Step 3: Cross multiply
    6,910.34x = 10,366.11 × 1,980.14
  4. Step 4: Simplify right side
    6,910.34x = 20,526,297.22
  5. Step 5: Solve for x
    x = 20,526,297.22/6,910.34
  6. Step 6: Final answer
    x = 2,970.38

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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.