Home / 3,870.35-5,805.26-1,792.02

Finding the Fourth Proportional to 3,870.35, 5,805.26 and 1,792.02

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Solution

The fourth proportional to 3,870.35, 5,805.26 and 1,792.02 is: 2,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.35 : 5,805.26 = 1,792.02 : x
  2. Step 2: Convert to fraction form
    3,870.35/5,805.26 = 1,792.02/x
  3. Step 3: Cross multiply
    3,870.35x = 5,805.26 × 1,792.02
  4. Step 4: Simplify right side
    3,870.35x = 10,403,133.07
  5. Step 5: Solve for x
    x = 10,403,133.07/3,870.35
  6. Step 6: Final answer
    x = 2,687.90

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Why These Related Problems?

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