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Finding the Fourth Proportional to 1,907.68, 2,873.28 and 1,772.48

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Solution

The fourth proportional to 1,907.68, 2,873.28 and 1,772.48 is: 2,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.68 : 2,873.28 = 1,772.48 : x
  2. Step 2: Convert to fraction form
    1,907.68/2,873.28 = 1,772.48/x
  3. Step 3: Cross multiply
    1,907.68x = 2,873.28 × 1,772.48
  4. Step 4: Simplify right side
    1,907.68x = 5,092,831.33
  5. Step 5: Solve for x
    x = 5,092,831.33/1,907.68
  6. Step 6: Final answer
    x = 2,669.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.