Home / 2,712.30-3,742.85-1,664.37

Finding the Fourth Proportional to 2,712.30, 3,742.85 and 1,664.37

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Solution

The fourth proportional to 2,712.30, 3,742.85 and 1,664.37 is: 2,296.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.30 : 3,742.85 = 1,664.37 : x
  2. Step 2: Convert to fraction form
    2,712.30/3,742.85 = 1,664.37/x
  3. Step 3: Cross multiply
    2,712.30x = 3,742.85 × 1,664.37
  4. Step 4: Simplify right side
    2,712.30x = 6,229,478.93
  5. Step 5: Solve for x
    x = 6,229,478.93/2,712.30
  6. Step 6: Final answer
    x = 2,296.75

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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.