Home / 3,090.72-4,634.64-1,141.60

Finding the Fourth Proportional to 3,090.72, 4,634.64 and 1,141.60

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Solution

The fourth proportional to 3,090.72, 4,634.64 and 1,141.60 is: 1,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.72 : 4,634.64 = 1,141.60 : x
  2. Step 2: Convert to fraction form
    3,090.72/4,634.64 = 1,141.60/x
  3. Step 3: Cross multiply
    3,090.72x = 4,634.64 × 1,141.60
  4. Step 4: Simplify right side
    3,090.72x = 5,290,905.02
  5. Step 5: Solve for x
    x = 5,290,905.02/3,090.72
  6. Step 6: Final answer
    x = 1,711.87

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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.