Home / 2,762.79-4,144.19-1,376.78

Finding the Fourth Proportional to 2,762.79, 4,144.19 and 1,376.78

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Solution

The fourth proportional to 2,762.79, 4,144.19 and 1,376.78 is: 2,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.79 : 4,144.19 = 1,376.78 : x
  2. Step 2: Convert to fraction form
    2,762.79/4,144.19 = 1,376.78/x
  3. Step 3: Cross multiply
    2,762.79x = 4,144.19 × 1,376.78
  4. Step 4: Simplify right side
    2,762.79x = 5,705,610.30
  5. Step 5: Solve for x
    x = 5,705,610.30/2,762.79
  6. Step 6: Final answer
    x = 2,065.16

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1.5x scale

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.