Home / 2,090.54-3,130.82-1,211.18

Finding the Fourth Proportional to 2,090.54, 3,130.82 and 1,211.18

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Solution

The fourth proportional to 2,090.54, 3,130.82 and 1,211.18 is: 1,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.54 : 3,130.82 = 1,211.18 : x
  2. Step 2: Convert to fraction form
    2,090.54/3,130.82 = 1,211.18/x
  3. Step 3: Cross multiply
    2,090.54x = 3,130.82 × 1,211.18
  4. Step 4: Simplify right side
    2,090.54x = 3,791,980.51
  5. Step 5: Solve for x
    x = 3,791,980.51/2,090.54
  6. Step 6: Final answer
    x = 1,813.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.