Home / 2,267.57-3,129.30-1,272.93

Finding the Fourth Proportional to 2,267.57, 3,129.30 and 1,272.93

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Solution

The fourth proportional to 2,267.57, 3,129.30 and 1,272.93 is: 1,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.57 : 3,129.30 = 1,272.93 : x
  2. Step 2: Convert to fraction form
    2,267.57/3,129.30 = 1,272.93/x
  3. Step 3: Cross multiply
    2,267.57x = 3,129.30 × 1,272.93
  4. Step 4: Simplify right side
    2,267.57x = 3,983,379.85
  5. Step 5: Solve for x
    x = 3,983,379.85/2,267.57
  6. Step 6: Final answer
    x = 1,756.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.