Home / 6,811.50-10,211.73-2,129.10

Finding the Fourth Proportional to 6,811.50, 10,211.73 and 2,129.10

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Solution

The fourth proportional to 6,811.50, 10,211.73 and 2,129.10 is: 3,191.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.50 : 10,211.73 = 2,129.10 : x
  2. Step 2: Convert to fraction form
    6,811.50/10,211.73 = 2,129.10/x
  3. Step 3: Cross multiply
    6,811.50x = 10,211.73 × 2,129.10
  4. Step 4: Simplify right side
    6,811.50x = 21,741,762.04
  5. Step 5: Solve for x
    x = 21,741,762.04/6,811.50
  6. Step 6: Final answer
    x = 3,191.92

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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.