Home / 3,180.90-4,772.70-1,536.60

Finding the Fourth Proportional to 3,180.90, 4,772.70 and 1,536.60

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Solution

The fourth proportional to 3,180.90, 4,772.70 and 1,536.60 is: 2,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.90 : 4,772.70 = 1,536.60 : x
  2. Step 2: Convert to fraction form
    3,180.90/4,772.70 = 1,536.60/x
  3. Step 3: Cross multiply
    3,180.90x = 4,772.70 × 1,536.60
  4. Step 4: Simplify right side
    3,180.90x = 7,333,730.82
  5. Step 5: Solve for x
    x = 7,333,730.82/3,180.90
  6. Step 6: Final answer
    x = 2,305.55

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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.