Home / 2,310.62-3,188.63-1,262.68

Finding the Fourth Proportional to 2,310.62, 3,188.63 and 1,262.68

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Solution

The fourth proportional to 2,310.62, 3,188.63 and 1,262.68 is: 1,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.62 : 3,188.63 = 1,262.68 : x
  2. Step 2: Convert to fraction form
    2,310.62/3,188.63 = 1,262.68/x
  3. Step 3: Cross multiply
    2,310.62x = 3,188.63 × 1,262.68
  4. Step 4: Simplify right side
    2,310.62x = 4,026,214.51
  5. Step 5: Solve for x
    x = 4,026,214.51/2,310.62
  6. Step 6: Final answer
    x = 1,742.49

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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.