Home / 5,282.20-7,923.80-1,386.64

Finding the Fourth Proportional to 5,282.20, 7,923.80 and 1,386.64

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Solution

The fourth proportional to 5,282.20, 7,923.80 and 1,386.64 is: 2,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.20 : 7,923.80 = 1,386.64 : x
  2. Step 2: Convert to fraction form
    5,282.20/7,923.80 = 1,386.64/x
  3. Step 3: Cross multiply
    5,282.20x = 7,923.80 × 1,386.64
  4. Step 4: Simplify right side
    5,282.20x = 10,987,458.03
  5. Step 5: Solve for x
    x = 10,987,458.03/5,282.20
  6. Step 6: Final answer
    x = 2,080.09

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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.