Home / 1,478.22-2,218.14-1,262.76

Finding the Fourth Proportional to 1,478.22, 2,218.14 and 1,262.76

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Solution

The fourth proportional to 1,478.22, 2,218.14 and 1,262.76 is: 1,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.22 : 2,218.14 = 1,262.76 : x
  2. Step 2: Convert to fraction form
    1,478.22/2,218.14 = 1,262.76/x
  3. Step 3: Cross multiply
    1,478.22x = 2,218.14 × 1,262.76
  4. Step 4: Simplify right side
    1,478.22x = 2,800,978.47
  5. Step 5: Solve for x
    x = 2,800,978.47/1,478.22
  6. Step 6: Final answer
    x = 1,894.83

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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.