Home / 7,478.58-11,218.26-2,797.44

Finding the Fourth Proportional to 7,478.58, 11,218.26 and 2,797.44

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Solution

The fourth proportional to 7,478.58, 11,218.26 and 2,797.44 is: 4,196.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.58 : 11,218.26 = 2,797.44 : x
  2. Step 2: Convert to fraction form
    7,478.58/11,218.26 = 2,797.44/x
  3. Step 3: Cross multiply
    7,478.58x = 11,218.26 × 2,797.44
  4. Step 4: Simplify right side
    7,478.58x = 31,382,409.25
  5. Step 5: Solve for x
    x = 31,382,409.25/7,478.58
  6. Step 6: Final answer
    x = 4,196.31

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1.5x scale

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.