Home / 2,857.07-4,286.06-1,213.63

Finding the Fourth Proportional to 2,857.07, 4,286.06 and 1,213.63

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Solution

The fourth proportional to 2,857.07, 4,286.06 and 1,213.63 is: 1,820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.07 : 4,286.06 = 1,213.63 : x
  2. Step 2: Convert to fraction form
    2,857.07/4,286.06 = 1,213.63/x
  3. Step 3: Cross multiply
    2,857.07x = 4,286.06 × 1,213.63
  4. Step 4: Simplify right side
    2,857.07x = 5,201,663.50
  5. Step 5: Solve for x
    x = 5,201,663.50/2,857.07
  6. Step 6: Final answer
    x = 1,820.63

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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.