Home / 6,857.55-10,286.72-1,927.57

Finding the Fourth Proportional to 6,857.55, 10,286.72 and 1,927.57

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Solution

The fourth proportional to 6,857.55, 10,286.72 and 1,927.57 is: 2,891.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857.55 : 10,286.72 = 1,927.57 : x
  2. Step 2: Convert to fraction form
    6,857.55/10,286.72 = 1,927.57/x
  3. Step 3: Cross multiply
    6,857.55x = 10,286.72 × 1,927.57
  4. Step 4: Simplify right side
    6,857.55x = 19,828,363.23
  5. Step 5: Solve for x
    x = 19,828,363.23/6,857.55
  6. Step 6: Final answer
    x = 2,891.47

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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.