Home / 7,203.40-10,790.70-4,121.80

Finding the Fourth Proportional to 7,203.40, 10,790.70 and 4,121.80

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Solution

The fourth proportional to 7,203.40, 10,790.70 and 4,121.80 is: 6,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.40 : 10,790.70 = 4,121.80 : x
  2. Step 2: Convert to fraction form
    7,203.40/10,790.70 = 4,121.80/x
  3. Step 3: Cross multiply
    7,203.40x = 10,790.70 × 4,121.80
  4. Step 4: Simplify right side
    7,203.40x = 44,477,107.26
  5. Step 5: Solve for x
    x = 44,477,107.26/7,203.40
  6. Step 6: Final answer
    x = 6,174.46

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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.