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Finding the Fourth Proportional to 2,831.78, 3,907.88 and 1,652.62

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Solution

The fourth proportional to 2,831.78, 3,907.88 and 1,652.62 is: 2,280.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.78 : 3,907.88 = 1,652.62 : x
  2. Step 2: Convert to fraction form
    2,831.78/3,907.88 = 1,652.62/x
  3. Step 3: Cross multiply
    2,831.78x = 3,907.88 × 1,652.62
  4. Step 4: Simplify right side
    2,831.78x = 6,458,240.65
  5. Step 5: Solve for x
    x = 6,458,240.65/2,831.78
  6. Step 6: Final answer
    x = 2,280.63

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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.