Home / 5,276.26-7,908.81-1,987.93

Finding the Fourth Proportional to 5,276.26, 7,908.81 and 1,987.93

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Solution

The fourth proportional to 5,276.26, 7,908.81 and 1,987.93 is: 2,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.26 : 7,908.81 = 1,987.93 : x
  2. Step 2: Convert to fraction form
    5,276.26/7,908.81 = 1,987.93/x
  3. Step 3: Cross multiply
    5,276.26x = 7,908.81 × 1,987.93
  4. Step 4: Simplify right side
    5,276.26x = 15,722,160.66
  5. Step 5: Solve for x
    x = 15,722,160.66/5,276.26
  6. Step 6: Final answer
    x = 2,979.79

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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.