Home / 2,310.76-3,188.79-1,262.83

Finding the Fourth Proportional to 2,310.76, 3,188.79 and 1,262.83

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Solution

The fourth proportional to 2,310.76, 3,188.79 and 1,262.83 is: 1,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.76 : 3,188.79 = 1,262.83 : x
  2. Step 2: Convert to fraction form
    2,310.76/3,188.79 = 1,262.83/x
  3. Step 3: Cross multiply
    2,310.76x = 3,188.79 × 1,262.83
  4. Step 4: Simplify right side
    2,310.76x = 4,026,899.68
  5. Step 5: Solve for x
    x = 4,026,899.68/2,310.76
  6. Step 6: Final answer
    x = 1,742.67

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1.5x scale

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.