Home / 1,964.45-2,947.08-1,768.40

Finding the Fourth Proportional to 1,964.45, 2,947.08 and 1,768.40

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Solution

The fourth proportional to 1,964.45, 2,947.08 and 1,768.40 is: 2,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.45 : 2,947.08 = 1,768.40 : x
  2. Step 2: Convert to fraction form
    1,964.45/2,947.08 = 1,768.40/x
  3. Step 3: Cross multiply
    1,964.45x = 2,947.08 × 1,768.40
  4. Step 4: Simplify right side
    1,964.45x = 5,211,601.54
  5. Step 5: Solve for x
    x = 5,211,601.54/1,964.45
  6. Step 6: Final answer
    x = 2,652.96

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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.