Home / 3,115.10-4,674.14-2,075.60

Finding the Fourth Proportional to 3,115.10, 4,674.14 and 2,075.60

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Solution

The fourth proportional to 3,115.10, 4,674.14 and 2,075.60 is: 3,114.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.10 : 4,674.14 = 2,075.60 : x
  2. Step 2: Convert to fraction form
    3,115.10/4,674.14 = 2,075.60/x
  3. Step 3: Cross multiply
    3,115.10x = 4,674.14 × 2,075.60
  4. Step 4: Simplify right side
    3,115.10x = 9,701,644.98
  5. Step 5: Solve for x
    x = 9,701,644.98/3,115.10
  6. Step 6: Final answer
    x = 3,114.39

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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.