Home / 1,914.42-2,872.44-1,047.72

Finding the Fourth Proportional to 1,914.42, 2,872.44 and 1,047.72

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Solution

The fourth proportional to 1,914.42, 2,872.44 and 1,047.72 is: 1,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.42 : 2,872.44 = 1,047.72 : x
  2. Step 2: Convert to fraction form
    1,914.42/2,872.44 = 1,047.72/x
  3. Step 3: Cross multiply
    1,914.42x = 2,872.44 × 1,047.72
  4. Step 4: Simplify right side
    1,914.42x = 3,009,512.84
  5. Step 5: Solve for x
    x = 3,009,512.84/1,914.42
  6. Step 6: Final answer
    x = 1,572.02

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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.