Home / 2,783.24-3,840.60-1,663.95

Finding the Fourth Proportional to 2,783.24, 3,840.60 and 1,663.95

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Solution

The fourth proportional to 2,783.24, 3,840.60 and 1,663.95 is: 2,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.24 : 3,840.60 = 1,663.95 : x
  2. Step 2: Convert to fraction form
    2,783.24/3,840.60 = 1,663.95/x
  3. Step 3: Cross multiply
    2,783.24x = 3,840.60 × 1,663.95
  4. Step 4: Simplify right side
    2,783.24x = 6,390,566.37
  5. Step 5: Solve for x
    x = 6,390,566.37/2,783.24
  6. Step 6: Final answer
    x = 2,296.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.