Home / 4,147.09-6,220.63-1,225.62

Finding the Fourth Proportional to 4,147.09, 6,220.63 and 1,225.62

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Solution

The fourth proportional to 4,147.09, 6,220.63 and 1,225.62 is: 1,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.09 : 6,220.63 = 1,225.62 : x
  2. Step 2: Convert to fraction form
    4,147.09/6,220.63 = 1,225.62/x
  3. Step 3: Cross multiply
    4,147.09x = 6,220.63 × 1,225.62
  4. Step 4: Simplify right side
    4,147.09x = 7,624,128.54
  5. Step 5: Solve for x
    x = 7,624,128.54/4,147.09
  6. Step 6: Final answer
    x = 1,838.43

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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.