Home / 2,821.64-4,226.29-1,722.67

Finding the Fourth Proportional to 2,821.64, 4,226.29 and 1,722.67

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Solution

The fourth proportional to 2,821.64, 4,226.29 and 1,722.67 is: 2,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.64 : 4,226.29 = 1,722.67 : x
  2. Step 2: Convert to fraction form
    2,821.64/4,226.29 = 1,722.67/x
  3. Step 3: Cross multiply
    2,821.64x = 4,226.29 × 1,722.67
  4. Step 4: Simplify right side
    2,821.64x = 7,280,488.12
  5. Step 5: Solve for x
    x = 7,280,488.12/2,821.64
  6. Step 6: Final answer
    x = 2,580.24

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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.