Home / 6,813.80-10,221.40-2,133.02

Finding the Fourth Proportional to 6,813.80, 10,221.40 and 2,133.02

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Solution

The fourth proportional to 6,813.80, 10,221.40 and 2,133.02 is: 3,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.80 : 10,221.40 = 2,133.02 : x
  2. Step 2: Convert to fraction form
    6,813.80/10,221.40 = 2,133.02/x
  3. Step 3: Cross multiply
    6,813.80x = 10,221.40 × 2,133.02
  4. Step 4: Simplify right side
    6,813.80x = 21,802,450.63
  5. Step 5: Solve for x
    x = 21,802,450.63/6,813.80
  6. Step 6: Final answer
    x = 3,199.75

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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.