Home / 1,951.06-2,927.28-1,219.78

Finding the Fourth Proportional to 1,951.06, 2,927.28 and 1,219.78

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Solution

The fourth proportional to 1,951.06, 2,927.28 and 1,219.78 is: 1,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.06 : 2,927.28 = 1,219.78 : x
  2. Step 2: Convert to fraction form
    1,951.06/2,927.28 = 1,219.78/x
  3. Step 3: Cross multiply
    1,951.06x = 2,927.28 × 1,219.78
  4. Step 4: Simplify right side
    1,951.06x = 3,570,637.60
  5. Step 5: Solve for x
    x = 3,570,637.60/1,951.06
  6. Step 6: Final answer
    x = 1,830.10

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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.