Home / 2,918.12-4,020.16-2,032.32

Finding the Fourth Proportional to 2,918.12, 4,020.16 and 2,032.32

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Solution

The fourth proportional to 2,918.12, 4,020.16 and 2,032.32 is: 2,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.12 : 4,020.16 = 2,032.32 : x
  2. Step 2: Convert to fraction form
    2,918.12/4,020.16 = 2,032.32/x
  3. Step 3: Cross multiply
    2,918.12x = 4,020.16 × 2,032.32
  4. Step 4: Simplify right side
    2,918.12x = 8,170,251.57
  5. Step 5: Solve for x
    x = 8,170,251.57/2,918.12
  6. Step 6: Final answer
    x = 2,799.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.