Home / 5,255.09-7,251.80-2,865.01

Finding the Fourth Proportional to 5,255.09, 7,251.80 and 2,865.01

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Solution

The fourth proportional to 5,255.09, 7,251.80 and 2,865.01 is: 3,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.09 : 7,251.80 = 2,865.01 : x
  2. Step 2: Convert to fraction form
    5,255.09/7,251.80 = 2,865.01/x
  3. Step 3: Cross multiply
    5,255.09x = 7,251.80 × 2,865.01
  4. Step 4: Simplify right side
    5,255.09x = 20,776,443.26
  5. Step 5: Solve for x
    x = 20,776,443.26/5,255.09
  6. Step 6: Final answer
    x = 3,953.58

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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.