Home / 5,199.84-7,172.02-3,309.56

Finding the Fourth Proportional to 5,199.84, 7,172.02 and 3,309.56

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Solution

The fourth proportional to 5,199.84, 7,172.02 and 3,309.56 is: 4,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.84 : 7,172.02 = 3,309.56 : x
  2. Step 2: Convert to fraction form
    5,199.84/7,172.02 = 3,309.56/x
  3. Step 3: Cross multiply
    5,199.84x = 7,172.02 × 3,309.56
  4. Step 4: Simplify right side
    5,199.84x = 23,736,230.51
  5. Step 5: Solve for x
    x = 23,736,230.51/5,199.84
  6. Step 6: Final answer
    x = 4,564.80

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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.