Home / 2,758.23-4,137.75-810.18

Finding the Fourth Proportional to 2,758.23, 4,137.75 and 810.18

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Solution

The fourth proportional to 2,758.23, 4,137.75 and 810.18 is: 1,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.23 : 4,137.75 = 810.18 : x
  2. Step 2: Convert to fraction form
    2,758.23/4,137.75 = 810.18/x
  3. Step 3: Cross multiply
    2,758.23x = 4,137.75 × 810.18
  4. Step 4: Simplify right side
    2,758.23x = 3,352,322.30
  5. Step 5: Solve for x
    x = 3,352,322.30/2,758.23
  6. Step 6: Final answer
    x = 1,215.39

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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.