Home / 5,145.53-7,711.37-2,802.03

Finding the Fourth Proportional to 5,145.53, 7,711.37 and 2,802.03

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Solution

The fourth proportional to 5,145.53, 7,711.37 and 2,802.03 is: 4,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.53 : 7,711.37 = 2,802.03 : x
  2. Step 2: Convert to fraction form
    5,145.53/7,711.37 = 2,802.03/x
  3. Step 3: Cross multiply
    5,145.53x = 7,711.37 × 2,802.03
  4. Step 4: Simplify right side
    5,145.53x = 21,607,497.09
  5. Step 5: Solve for x
    x = 21,607,497.09/5,145.53
  6. Step 6: Final answer
    x = 4,199.27

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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.