Home / 2,756.90-4,134.18-1,369.70

Finding the Fourth Proportional to 2,756.90, 4,134.18 and 1,369.70

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Solution

The fourth proportional to 2,756.90, 4,134.18 and 1,369.70 is: 2,053.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.90 : 4,134.18 = 1,369.70 : x
  2. Step 2: Convert to fraction form
    2,756.90/4,134.18 = 1,369.70/x
  3. Step 3: Cross multiply
    2,756.90x = 4,134.18 × 1,369.70
  4. Step 4: Simplify right side
    2,756.90x = 5,662,586.35
  5. Step 5: Solve for x
    x = 5,662,586.35/2,756.90
  6. Step 6: Final answer
    x = 2,053.97

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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.