Home / 5,262.60-7,890.66-1,800.12

Finding the Fourth Proportional to 5,262.60, 7,890.66 and 1,800.12

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Solution

The fourth proportional to 5,262.60, 7,890.66 and 1,800.12 is: 2,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.60 : 7,890.66 = 1,800.12 : x
  2. Step 2: Convert to fraction form
    5,262.60/7,890.66 = 1,800.12/x
  3. Step 3: Cross multiply
    5,262.60x = 7,890.66 × 1,800.12
  4. Step 4: Simplify right side
    5,262.60x = 14,204,134.88
  5. Step 5: Solve for x
    x = 14,204,134.88/5,262.60
  6. Step 6: Final answer
    x = 2,699.07

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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.