Home / 3,090.25-4,264.55-1,693

Finding the Fourth Proportional to 3,090.25, 4,264.55 and 1,693

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Solution

The fourth proportional to 3,090.25, 4,264.55 and 1,693 is: 2,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.25 : 4,264.55 = 1,693 : x
  2. Step 2: Convert to fraction form
    3,090.25/4,264.55 = 1,693/x
  3. Step 3: Cross multiply
    3,090.25x = 4,264.55 × 1,693
  4. Step 4: Simplify right side
    3,090.25x = 7,219,883.15
  5. Step 5: Solve for x
    x = 7,219,883.15/3,090.25
  6. Step 6: Final answer
    x = 2,336.34

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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.