Home / 2,851.06-4,277.40-1,809.40

Finding the Fourth Proportional to 2,851.06, 4,277.40 and 1,809.40

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Solution

The fourth proportional to 2,851.06, 4,277.40 and 1,809.40 is: 2,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.06 : 4,277.40 = 1,809.40 : x
  2. Step 2: Convert to fraction form
    2,851.06/4,277.40 = 1,809.40/x
  3. Step 3: Cross multiply
    2,851.06x = 4,277.40 × 1,809.40
  4. Step 4: Simplify right side
    2,851.06x = 7,739,527.56
  5. Step 5: Solve for x
    x = 7,739,527.56/2,851.06
  6. Step 6: Final answer
    x = 2,714.61

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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.