Home / 4,785.45-7,175.35-1,860.31

Finding the Fourth Proportional to 4,785.45, 7,175.35 and 1,860.31

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Solution

The fourth proportional to 4,785.45, 7,175.35 and 1,860.31 is: 2,789.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.45 : 7,175.35 = 1,860.31 : x
  2. Step 2: Convert to fraction form
    4,785.45/7,175.35 = 1,860.31/x
  3. Step 3: Cross multiply
    4,785.45x = 7,175.35 × 1,860.31
  4. Step 4: Simplify right side
    4,785.45x = 13,348,375.36
  5. Step 5: Solve for x
    x = 13,348,375.36/4,785.45
  6. Step 6: Final answer
    x = 2,789.37

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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.