Home / 3,118.28-4,301.72-1,858.94

Finding the Fourth Proportional to 3,118.28, 4,301.72 and 1,858.94

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Solution

The fourth proportional to 3,118.28, 4,301.72 and 1,858.94 is: 2,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.28 : 4,301.72 = 1,858.94 : x
  2. Step 2: Convert to fraction form
    3,118.28/4,301.72 = 1,858.94/x
  3. Step 3: Cross multiply
    3,118.28x = 4,301.72 × 1,858.94
  4. Step 4: Simplify right side
    3,118.28x = 7,996,608.57
  5. Step 5: Solve for x
    x = 7,996,608.57/3,118.28
  6. Step 6: Final answer
    x = 2,564.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.