Home / 3,090.30-4,261.27-2,205.74

Finding the Fourth Proportional to 3,090.30, 4,261.27 and 2,205.74

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Solution

The fourth proportional to 3,090.30, 4,261.27 and 2,205.74 is: 3,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.30 : 4,261.27 = 2,205.74 : x
  2. Step 2: Convert to fraction form
    3,090.30/4,261.27 = 2,205.74/x
  3. Step 3: Cross multiply
    3,090.30x = 4,261.27 × 2,205.74
  4. Step 4: Simplify right side
    3,090.30x = 9,399,253.69
  5. Step 5: Solve for x
    x = 9,399,253.69/3,090.30
  6. Step 6: Final answer
    x = 3,041.53

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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.