Home / 7,116.78-10,675.14-1,922.64

Finding the Fourth Proportional to 7,116.78, 10,675.14 and 1,922.64

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Solution

The fourth proportional to 7,116.78, 10,675.14 and 1,922.64 is: 2,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.78 : 10,675.14 = 1,922.64 : x
  2. Step 2: Convert to fraction form
    7,116.78/10,675.14 = 1,922.64/x
  3. Step 3: Cross multiply
    7,116.78x = 10,675.14 × 1,922.64
  4. Step 4: Simplify right side
    7,116.78x = 20,524,451.17
  5. Step 5: Solve for x
    x = 20,524,451.17/7,116.78
  6. Step 6: Final answer
    x = 2,883.95

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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.