Home / 5,172.81-7,756.53-2,539.14

Finding the Fourth Proportional to 5,172.81, 7,756.53 and 2,539.14

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Solution

The fourth proportional to 5,172.81, 7,756.53 and 2,539.14 is: 3,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.81 : 7,756.53 = 2,539.14 : x
  2. Step 2: Convert to fraction form
    5,172.81/7,756.53 = 2,539.14/x
  3. Step 3: Cross multiply
    5,172.81x = 7,756.53 × 2,539.14
  4. Step 4: Simplify right side
    5,172.81x = 19,694,915.58
  5. Step 5: Solve for x
    x = 19,694,915.58/5,172.81
  6. Step 6: Final answer
    x = 3,807.39

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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.