Home / 4,722.93-7,078.64-2,123.01

Finding the Fourth Proportional to 4,722.93, 7,078.64 and 2,123.01

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Solution

The fourth proportional to 4,722.93, 7,078.64 and 2,123.01 is: 3,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,722.93 : 7,078.64 = 2,123.01 : x
  2. Step 2: Convert to fraction form
    4,722.93/7,078.64 = 2,123.01/x
  3. Step 3: Cross multiply
    4,722.93x = 7,078.64 × 2,123.01
  4. Step 4: Simplify right side
    4,722.93x = 15,028,012.89
  5. Step 5: Solve for x
    x = 15,028,012.89/4,722.93
  6. Step 6: Final answer
    x = 3,181.93

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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.