Home / 2,717.10-4,075.99-769.30

Finding the Fourth Proportional to 2,717.10, 4,075.99 and 769.30

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Solution

The fourth proportional to 2,717.10, 4,075.99 and 769.30 is: 1,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.10 : 4,075.99 = 769.30 : x
  2. Step 2: Convert to fraction form
    2,717.10/4,075.99 = 769.30/x
  3. Step 3: Cross multiply
    2,717.10x = 4,075.99 × 769.30
  4. Step 4: Simplify right side
    2,717.10x = 3,135,659.11
  5. Step 5: Solve for x
    x = 3,135,659.11/2,717.10
  6. Step 6: Final answer
    x = 1,154.05

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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.