Home / 1,219.86-1,829.25-1,169.46

Finding the Fourth Proportional to 1,219.86, 1,829.25 and 1,169.46

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Solution

The fourth proportional to 1,219.86, 1,829.25 and 1,169.46 is: 1,753.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.86 : 1,829.25 = 1,169.46 : x
  2. Step 2: Convert to fraction form
    1,219.86/1,829.25 = 1,169.46/x
  3. Step 3: Cross multiply
    1,219.86x = 1,829.25 × 1,169.46
  4. Step 4: Simplify right side
    1,219.86x = 2,139,234.71
  5. Step 5: Solve for x
    x = 2,139,234.71/1,219.86
  6. Step 6: Final answer
    x = 1,753.67

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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.