Home / 1,290.23-1,935.16-365.87

Finding the Fourth Proportional to 1,290.23, 1,935.16 and 365.87

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Solution

The fourth proportional to 1,290.23, 1,935.16 and 365.87 is: 548.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290.23 : 1,935.16 = 365.87 : x
  2. Step 2: Convert to fraction form
    1,290.23/1,935.16 = 365.87/x
  3. Step 3: Cross multiply
    1,290.23x = 1,935.16 × 365.87
  4. Step 4: Simplify right side
    1,290.23x = 708,010.03
  5. Step 5: Solve for x
    x = 708,010.03/1,290.23
  6. Step 6: Final answer
    x = 548.75

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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.