Home / 3,120.54-4,683.15-1,272.33

Finding the Fourth Proportional to 3,120.54, 4,683.15 and 1,272.33

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Solution

The fourth proportional to 3,120.54, 4,683.15 and 1,272.33 is: 1,909.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.54 : 4,683.15 = 1,272.33 : x
  2. Step 2: Convert to fraction form
    3,120.54/4,683.15 = 1,272.33/x
  3. Step 3: Cross multiply
    3,120.54x = 4,683.15 × 1,272.33
  4. Step 4: Simplify right side
    3,120.54x = 5,958,512.24
  5. Step 5: Solve for x
    x = 5,958,512.24/3,120.54
  6. Step 6: Final answer
    x = 1,909.45

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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.