Home / 5,279.12-7,907.70-2,508.20

Finding the Fourth Proportional to 5,279.12, 7,907.70 and 2,508.20

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Solution

The fourth proportional to 5,279.12, 7,907.70 and 2,508.20 is: 3,757.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.12 : 7,907.70 = 2,508.20 : x
  2. Step 2: Convert to fraction form
    5,279.12/7,907.70 = 2,508.20/x
  3. Step 3: Cross multiply
    5,279.12x = 7,907.70 × 2,508.20
  4. Step 4: Simplify right side
    5,279.12x = 19,834,093.14
  5. Step 5: Solve for x
    x = 19,834,093.14/5,279.12
  6. Step 6: Final answer
    x = 3,757.08

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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.