Home / 1,928.20-2,884.74-1,764.76

Finding the Fourth Proportional to 1,928.20, 2,884.74 and 1,764.76

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Solution

The fourth proportional to 1,928.20, 2,884.74 and 1,764.76 is: 2,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.20 : 2,884.74 = 1,764.76 : x
  2. Step 2: Convert to fraction form
    1,928.20/2,884.74 = 1,764.76/x
  3. Step 3: Cross multiply
    1,928.20x = 2,884.74 × 1,764.76
  4. Step 4: Simplify right side
    1,928.20x = 5,090,873.76
  5. Step 5: Solve for x
    x = 5,090,873.76/1,928.20
  6. Step 6: Final answer
    x = 2,640.22

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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.