Home / 2,815.55-4,216.73-1,425.49

Finding the Fourth Proportional to 2,815.55, 4,216.73 and 1,425.49

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Solution

The fourth proportional to 2,815.55, 4,216.73 and 1,425.49 is: 2,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.55 : 4,216.73 = 1,425.49 : x
  2. Step 2: Convert to fraction form
    2,815.55/4,216.73 = 1,425.49/x
  3. Step 3: Cross multiply
    2,815.55x = 4,216.73 × 1,425.49
  4. Step 4: Simplify right side
    2,815.55x = 6,010,878.24
  5. Step 5: Solve for x
    x = 6,010,878.24/2,815.55
  6. Step 6: Final answer
    x = 2,134.89

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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.