Home / 7,175.51-9,905.57-4,789.44

Finding the Fourth Proportional to 7,175.51, 9,905.57 and 4,789.44

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Solution

The fourth proportional to 7,175.51, 9,905.57 and 4,789.44 is: 6,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.51 : 9,905.57 = 4,789.44 : x
  2. Step 2: Convert to fraction form
    7,175.51/9,905.57 = 4,789.44/x
  3. Step 3: Cross multiply
    7,175.51x = 9,905.57 × 4,789.44
  4. Step 4: Simplify right side
    7,175.51x = 47,442,109.23
  5. Step 5: Solve for x
    x = 47,442,109.23/7,175.51
  6. Step 6: Final answer
    x = 6,611.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.