Home / 1,612.45-2,224.60-982.54

Finding the Fourth Proportional to 1,612.45, 2,224.60 and 982.54

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Solution

The fourth proportional to 1,612.45, 2,224.60 and 982.54 is: 1,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.45 : 2,224.60 = 982.54 : x
  2. Step 2: Convert to fraction form
    1,612.45/2,224.60 = 982.54/x
  3. Step 3: Cross multiply
    1,612.45x = 2,224.60 × 982.54
  4. Step 4: Simplify right side
    1,612.45x = 2,185,758.81
  5. Step 5: Solve for x
    x = 2,185,758.81/1,612.45
  6. Step 6: Final answer
    x = 1,355.55

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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.