Home / 6,918.49-10,378.38-2,757.49

Finding the Fourth Proportional to 6,918.49, 10,378.38 and 2,757.49

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Solution

The fourth proportional to 6,918.49, 10,378.38 and 2,757.49 is: 4,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.49 : 10,378.38 = 2,757.49 : x
  2. Step 2: Convert to fraction form
    6,918.49/10,378.38 = 2,757.49/x
  3. Step 3: Cross multiply
    6,918.49x = 10,378.38 × 2,757.49
  4. Step 4: Simplify right side
    6,918.49x = 28,618,279.07
  5. Step 5: Solve for x
    x = 28,618,279.07/6,918.49
  6. Step 6: Final answer
    x = 4,136.49

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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.