Home / 7,519.15-11,279.09-1,972.50

Finding the Fourth Proportional to 7,519.15, 11,279.09 and 1,972.50

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Solution

The fourth proportional to 7,519.15, 11,279.09 and 1,972.50 is: 2,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.15 : 11,279.09 = 1,972.50 : x
  2. Step 2: Convert to fraction form
    7,519.15/11,279.09 = 1,972.50/x
  3. Step 3: Cross multiply
    7,519.15x = 11,279.09 × 1,972.50
  4. Step 4: Simplify right side
    7,519.15x = 22,248,052.25
  5. Step 5: Solve for x
    x = 22,248,052.25/7,519.15
  6. Step 6: Final answer
    x = 2,958.85

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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.