Home / 7,010.78-10,518.35-2,080.44

Finding the Fourth Proportional to 7,010.78, 10,518.35 and 2,080.44

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Solution

The fourth proportional to 7,010.78, 10,518.35 and 2,080.44 is: 3,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.78 : 10,518.35 = 2,080.44 : x
  2. Step 2: Convert to fraction form
    7,010.78/10,518.35 = 2,080.44/x
  3. Step 3: Cross multiply
    7,010.78x = 10,518.35 × 2,080.44
  4. Step 4: Simplify right side
    7,010.78x = 21,882,785.67
  5. Step 5: Solve for x
    x = 21,882,785.67/7,010.78
  6. Step 6: Final answer
    x = 3,121.31

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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.