Home / 4,272.40-6,411-2,080.24

Finding the Fourth Proportional to 4,272.40, 6,411 and 2,080.24

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Solution

The fourth proportional to 4,272.40, 6,411 and 2,080.24 is: 3,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.40 : 6,411 = 2,080.24 : x
  2. Step 2: Convert to fraction form
    4,272.40/6,411 = 2,080.24/x
  3. Step 3: Cross multiply
    4,272.40x = 6,411 × 2,080.24
  4. Step 4: Simplify right side
    4,272.40x = 13,336,418.64
  5. Step 5: Solve for x
    x = 13,336,418.64/4,272.40
  6. Step 6: Final answer
    x = 3,121.53

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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.