Home / 1,639.22-2,467.08-1,230.50

Finding the Fourth Proportional to 1,639.22, 2,467.08 and 1,230.50

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Solution

The fourth proportional to 1,639.22, 2,467.08 and 1,230.50 is: 1,851.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.22 : 2,467.08 = 1,230.50 : x
  2. Step 2: Convert to fraction form
    1,639.22/2,467.08 = 1,230.50/x
  3. Step 3: Cross multiply
    1,639.22x = 2,467.08 × 1,230.50
  4. Step 4: Simplify right side
    1,639.22x = 3,035,735.79
  5. Step 5: Solve for x
    x = 3,035,735.79/1,639.22
  6. Step 6: Final answer
    x = 1,851.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.