Home / 4,428.09-6,643.52-2,782.37

Finding the Fourth Proportional to 4,428.09, 6,643.52 and 2,782.37

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Solution

The fourth proportional to 4,428.09, 6,643.52 and 2,782.37 is: 4,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.09 : 6,643.52 = 2,782.37 : x
  2. Step 2: Convert to fraction form
    4,428.09/6,643.52 = 2,782.37/x
  3. Step 3: Cross multiply
    4,428.09x = 6,643.52 × 2,782.37
  4. Step 4: Simplify right side
    4,428.09x = 18,484,683.61
  5. Step 5: Solve for x
    x = 18,484,683.61/4,428.09
  6. Step 6: Final answer
    x = 4,174.41

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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.