Home / 1,944.76-2,684.78-1,318.60

Finding the Fourth Proportional to 1,944.76, 2,684.78 and 1,318.60

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Solution

The fourth proportional to 1,944.76, 2,684.78 and 1,318.60 is: 1,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.76 : 2,684.78 = 1,318.60 : x
  2. Step 2: Convert to fraction form
    1,944.76/2,684.78 = 1,318.60/x
  3. Step 3: Cross multiply
    1,944.76x = 2,684.78 × 1,318.60
  4. Step 4: Simplify right side
    1,944.76x = 3,540,150.91
  5. Step 5: Solve for x
    x = 3,540,150.91/1,944.76
  6. Step 6: Final answer
    x = 1,820.35

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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.