Home / 4,428.08-6,643.80-2,782.80

Finding the Fourth Proportional to 4,428.08, 6,643.80 and 2,782.80

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Solution

The fourth proportional to 4,428.08, 6,643.80 and 2,782.80 is: 4,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.08 : 6,643.80 = 2,782.80 : x
  2. Step 2: Convert to fraction form
    4,428.08/6,643.80 = 2,782.80/x
  3. Step 3: Cross multiply
    4,428.08x = 6,643.80 × 2,782.80
  4. Step 4: Simplify right side
    4,428.08x = 18,488,366.64
  5. Step 5: Solve for x
    x = 18,488,366.64/4,428.08
  6. Step 6: Final answer
    x = 4,175.26

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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.