Home / 3,870.18-5,805.27-1,561.14

Finding the Fourth Proportional to 3,870.18, 5,805.27 and 1,561.14

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Solution

The fourth proportional to 3,870.18, 5,805.27 and 1,561.14 is: 2,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.18 : 5,805.27 = 1,561.14 : x
  2. Step 2: Convert to fraction form
    3,870.18/5,805.27 = 1,561.14/x
  3. Step 3: Cross multiply
    3,870.18x = 5,805.27 × 1,561.14
  4. Step 4: Simplify right side
    3,870.18x = 9,062,839.21
  5. Step 5: Solve for x
    x = 9,062,839.21/3,870.18
  6. Step 6: Final answer
    x = 2,341.71

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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.