Home / 7,090.22-9,781.80-4,104.56

Finding the Fourth Proportional to 7,090.22, 9,781.80 and 4,104.56

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Solution

The fourth proportional to 7,090.22, 9,781.80 and 4,104.56 is: 5,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.22 : 9,781.80 = 4,104.56 : x
  2. Step 2: Convert to fraction form
    7,090.22/9,781.80 = 4,104.56/x
  3. Step 3: Cross multiply
    7,090.22x = 9,781.80 × 4,104.56
  4. Step 4: Simplify right side
    7,090.22x = 40,149,936.10
  5. Step 5: Solve for x
    x = 40,149,936.10/7,090.22
  6. Step 6: Final answer
    x = 5,662.72

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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.