Home / 2,415.74-3,622.23-2,209.34

Finding the Fourth Proportional to 2,415.74, 3,622.23 and 2,209.34

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Solution

The fourth proportional to 2,415.74, 3,622.23 and 2,209.34 is: 3,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.74 : 3,622.23 = 2,209.34 : x
  2. Step 2: Convert to fraction form
    2,415.74/3,622.23 = 2,209.34/x
  3. Step 3: Cross multiply
    2,415.74x = 3,622.23 × 2,209.34
  4. Step 4: Simplify right side
    2,415.74x = 8,002,746.68
  5. Step 5: Solve for x
    x = 8,002,746.68/2,415.74
  6. Step 6: Final answer
    x = 3,312.76

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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.