Home / 7,919.01-11,878.34-2,075.13

Finding the Fourth Proportional to 7,919.01, 11,878.34 and 2,075.13

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Solution

The fourth proportional to 7,919.01, 11,878.34 and 2,075.13 is: 3,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.01 : 11,878.34 = 2,075.13 : x
  2. Step 2: Convert to fraction form
    7,919.01/11,878.34 = 2,075.13/x
  3. Step 3: Cross multiply
    7,919.01x = 11,878.34 × 2,075.13
  4. Step 4: Simplify right side
    7,919.01x = 24,649,089.31
  5. Step 5: Solve for x
    x = 24,649,089.31/7,919.01
  6. Step 6: Final answer
    x = 3,112.65

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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.