Home / 2,864.35-4,295.58-1,221.67

Finding the Fourth Proportional to 2,864.35, 4,295.58 and 1,221.67

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Solution

The fourth proportional to 2,864.35, 4,295.58 and 1,221.67 is: 1,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.35 : 4,295.58 = 1,221.67 : x
  2. Step 2: Convert to fraction form
    2,864.35/4,295.58 = 1,221.67/x
  3. Step 3: Cross multiply
    2,864.35x = 4,295.58 × 1,221.67
  4. Step 4: Simplify right side
    2,864.35x = 5,247,781.22
  5. Step 5: Solve for x
    x = 5,247,781.22/2,864.35
  6. Step 6: Final answer
    x = 1,832.10

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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.