Home / 7,272.12-10,908.06-2,890.80

Finding the Fourth Proportional to 7,272.12, 10,908.06 and 2,890.80

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Solution

The fourth proportional to 7,272.12, 10,908.06 and 2,890.80 is: 4,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.12 : 10,908.06 = 2,890.80 : x
  2. Step 2: Convert to fraction form
    7,272.12/10,908.06 = 2,890.80/x
  3. Step 3: Cross multiply
    7,272.12x = 10,908.06 × 2,890.80
  4. Step 4: Simplify right side
    7,272.12x = 31,533,019.85
  5. Step 5: Solve for x
    x = 31,533,019.85/7,272.12
  6. Step 6: Final answer
    x = 4,336.15

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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.