Home / 2,739.46-4,109.18-1,277.80

Finding the Fourth Proportional to 2,739.46, 4,109.18 and 1,277.80

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Solution

The fourth proportional to 2,739.46, 4,109.18 and 1,277.80 is: 1,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.46 : 4,109.18 = 1,277.80 : x
  2. Step 2: Convert to fraction form
    2,739.46/4,109.18 = 1,277.80/x
  3. Step 3: Cross multiply
    2,739.46x = 4,109.18 × 1,277.80
  4. Step 4: Simplify right side
    2,739.46x = 5,250,710.20
  5. Step 5: Solve for x
    x = 5,250,710.20/2,739.46
  6. Step 6: Final answer
    x = 1,916.70

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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.