Home / 7,090.22-10,634.90-3,140.32

Finding the Fourth Proportional to 7,090.22, 10,634.90 and 3,140.32

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Solution

The fourth proportional to 7,090.22, 10,634.90 and 3,140.32 is: 4,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.22 : 10,634.90 = 3,140.32 : x
  2. Step 2: Convert to fraction form
    7,090.22/10,634.90 = 3,140.32/x
  3. Step 3: Cross multiply
    7,090.22x = 10,634.90 × 3,140.32
  4. Step 4: Simplify right side
    7,090.22x = 33,396,958.66
  5. Step 5: Solve for x
    x = 33,396,958.66/7,090.22
  6. Step 6: Final answer
    x = 4,710.29

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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.