Home / 2,217.86-3,325.70-1,267.91

Finding the Fourth Proportional to 2,217.86, 3,325.70 and 1,267.91

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Solution

The fourth proportional to 2,217.86, 3,325.70 and 1,267.91 is: 1,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.86 : 3,325.70 = 1,267.91 : x
  2. Step 2: Convert to fraction form
    2,217.86/3,325.70 = 1,267.91/x
  3. Step 3: Cross multiply
    2,217.86x = 3,325.70 × 1,267.91
  4. Step 4: Simplify right side
    2,217.86x = 4,216,665.32
  5. Step 5: Solve for x
    x = 4,216,665.32/2,217.86
  6. Step 6: Final answer
    x = 1,901.24

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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.