Home / 2,605.55-3,905.59-1,618.36

Finding the Fourth Proportional to 2,605.55, 3,905.59 and 1,618.36

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Solution

The fourth proportional to 2,605.55, 3,905.59 and 1,618.36 is: 2,425.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.55 : 3,905.59 = 1,618.36 : x
  2. Step 2: Convert to fraction form
    2,605.55/3,905.59 = 1,618.36/x
  3. Step 3: Cross multiply
    2,605.55x = 3,905.59 × 1,618.36
  4. Step 4: Simplify right side
    2,605.55x = 6,320,650.63
  5. Step 5: Solve for x
    x = 6,320,650.63/2,605.55
  6. Step 6: Final answer
    x = 2,425.84

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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.