Home / 7,084.22-9,776.34-3,897.63

Finding the Fourth Proportional to 7,084.22, 9,776.34 and 3,897.63

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Solution

The fourth proportional to 7,084.22, 9,776.34 and 3,897.63 is: 5,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.22 : 9,776.34 = 3,897.63 : x
  2. Step 2: Convert to fraction form
    7,084.22/9,776.34 = 3,897.63/x
  3. Step 3: Cross multiply
    7,084.22x = 9,776.34 × 3,897.63
  4. Step 4: Simplify right side
    7,084.22x = 38,104,556.07
  5. Step 5: Solve for x
    x = 38,104,556.07/7,084.22
  6. Step 6: Final answer
    x = 5,378.80

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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.