Home / 2,719.10-4,078.61-1,075.62

Finding the Fourth Proportional to 2,719.10, 4,078.61 and 1,075.62

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Solution

The fourth proportional to 2,719.10, 4,078.61 and 1,075.62 is: 1,613.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.10 : 4,078.61 = 1,075.62 : x
  2. Step 2: Convert to fraction form
    2,719.10/4,078.61 = 1,075.62/x
  3. Step 3: Cross multiply
    2,719.10x = 4,078.61 × 1,075.62
  4. Step 4: Simplify right side
    2,719.10x = 4,387,029.11
  5. Step 5: Solve for x
    x = 4,387,029.11/2,719.10
  6. Step 6: Final answer
    x = 1,613.42

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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.