Home / 4,722.63-7,078.41-1,947.93

Finding the Fourth Proportional to 4,722.63, 7,078.41 and 1,947.93

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Solution

The fourth proportional to 4,722.63, 7,078.41 and 1,947.93 is: 2,919.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.63 : 7,078.41 = 1,947.93 : x
  2. Step 2: Convert to fraction form
    4,722.63/7,078.41 = 1,947.93/x
  3. Step 3: Cross multiply
    4,722.63x = 7,078.41 × 1,947.93
  4. Step 4: Simplify right side
    4,722.63x = 13,788,247.19
  5. Step 5: Solve for x
    x = 13,788,247.19/4,722.63
  6. Step 6: Final answer
    x = 2,919.61

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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.