Home / 1,968.06-2,714.33-1,220.60

Finding the Fourth Proportional to 1,968.06, 2,714.33 and 1,220.60

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Solution

The fourth proportional to 1,968.06, 2,714.33 and 1,220.60 is: 1,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.06 : 2,714.33 = 1,220.60 : x
  2. Step 2: Convert to fraction form
    1,968.06/2,714.33 = 1,220.60/x
  3. Step 3: Cross multiply
    1,968.06x = 2,714.33 × 1,220.60
  4. Step 4: Simplify right side
    1,968.06x = 3,313,114.17
  5. Step 5: Solve for x
    x = 3,313,114.17/1,968.06
  6. Step 6: Final answer
    x = 1,683.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.