Home / 4,719.80-7,075.38-2,255.78

Finding the Fourth Proportional to 4,719.80, 7,075.38 and 2,255.78

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Solution

The fourth proportional to 4,719.80, 7,075.38 and 2,255.78 is: 3,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.80 : 7,075.38 = 2,255.78 : x
  2. Step 2: Convert to fraction form
    4,719.80/7,075.38 = 2,255.78/x
  3. Step 3: Cross multiply
    4,719.80x = 7,075.38 × 2,255.78
  4. Step 4: Simplify right side
    4,719.80x = 15,960,500.70
  5. Step 5: Solve for x
    x = 15,960,500.70/4,719.80
  6. Step 6: Final answer
    x = 3,381.61

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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.