Home / 2,756.46-4,131.90-1,370.79

Finding the Fourth Proportional to 2,756.46, 4,131.90 and 1,370.79

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Solution

The fourth proportional to 2,756.46, 4,131.90 and 1,370.79 is: 2,054.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.46 : 4,131.90 = 1,370.79 : x
  2. Step 2: Convert to fraction form
    2,756.46/4,131.90 = 1,370.79/x
  3. Step 3: Cross multiply
    2,756.46x = 4,131.90 × 1,370.79
  4. Step 4: Simplify right side
    2,756.46x = 5,663,967.20
  5. Step 5: Solve for x
    x = 5,663,967.20/2,756.46
  6. Step 6: Final answer
    x = 2,054.80

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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.