Home / 4,339.80-6,511.30-1,418.20

Finding the Fourth Proportional to 4,339.80, 6,511.30 and 1,418.20

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Solution

The fourth proportional to 4,339.80, 6,511.30 and 1,418.20 is: 2,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,339.80 : 6,511.30 = 1,418.20 : x
  2. Step 2: Convert to fraction form
    4,339.80/6,511.30 = 1,418.20/x
  3. Step 3: Cross multiply
    4,339.80x = 6,511.30 × 1,418.20
  4. Step 4: Simplify right side
    4,339.80x = 9,234,325.66
  5. Step 5: Solve for x
    x = 9,234,325.66/4,339.80
  6. Step 6: Final answer
    x = 2,127.82

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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.