Home / 7,075.05-10,612.64-2,145.09

Finding the Fourth Proportional to 7,075.05, 10,612.64 and 2,145.09

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Solution

The fourth proportional to 7,075.05, 10,612.64 and 2,145.09 is: 3,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.05 : 10,612.64 = 2,145.09 : x
  2. Step 2: Convert to fraction form
    7,075.05/10,612.64 = 2,145.09/x
  3. Step 3: Cross multiply
    7,075.05x = 10,612.64 × 2,145.09
  4. Step 4: Simplify right side
    7,075.05x = 22,765,067.94
  5. Step 5: Solve for x
    x = 22,765,067.94/7,075.05
  6. Step 6: Final answer
    x = 3,217.65

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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.