Home / 4,782.06-7,172.28-1,318.50

Finding the Fourth Proportional to 4,782.06, 7,172.28 and 1,318.50

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Solution

The fourth proportional to 4,782.06, 7,172.28 and 1,318.50 is: 1,977.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.06 : 7,172.28 = 1,318.50 : x
  2. Step 2: Convert to fraction form
    4,782.06/7,172.28 = 1,318.50/x
  3. Step 3: Cross multiply
    4,782.06x = 7,172.28 × 1,318.50
  4. Step 4: Simplify right side
    4,782.06x = 9,456,651.18
  5. Step 5: Solve for x
    x = 9,456,651.18/4,782.06
  6. Step 6: Final answer
    x = 1,977.53

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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.