Home / 3,090.36-4,634.04-1,629.12

Finding the Fourth Proportional to 3,090.36, 4,634.04 and 1,629.12

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Solution

The fourth proportional to 3,090.36, 4,634.04 and 1,629.12 is: 2,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.36 : 4,634.04 = 1,629.12 : x
  2. Step 2: Convert to fraction form
    3,090.36/4,634.04 = 1,629.12/x
  3. Step 3: Cross multiply
    3,090.36x = 4,634.04 × 1,629.12
  4. Step 4: Simplify right side
    3,090.36x = 7,549,407.24
  5. Step 5: Solve for x
    x = 7,549,407.24/3,090.36
  6. Step 6: Final answer
    x = 2,442.89

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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.