Home / 3,515.36-5,274-1,871.46

Finding the Fourth Proportional to 3,515.36, 5,274 and 1,871.46

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Solution

The fourth proportional to 3,515.36, 5,274 and 1,871.46 is: 2,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.36 : 5,274 = 1,871.46 : x
  2. Step 2: Convert to fraction form
    3,515.36/5,274 = 1,871.46/x
  3. Step 3: Cross multiply
    3,515.36x = 5,274 × 1,871.46
  4. Step 4: Simplify right side
    3,515.36x = 9,870,080.04
  5. Step 5: Solve for x
    x = 9,870,080.04/3,515.36
  6. Step 6: Final answer
    x = 2,807.71

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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.