Home / 2,211.20-3,051-1,267.04

Finding the Fourth Proportional to 2,211.20, 3,051 and 1,267.04

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Solution

The fourth proportional to 2,211.20, 3,051 and 1,267.04 is: 1,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.20 : 3,051 = 1,267.04 : x
  2. Step 2: Convert to fraction form
    2,211.20/3,051 = 1,267.04/x
  3. Step 3: Cross multiply
    2,211.20x = 3,051 × 1,267.04
  4. Step 4: Simplify right side
    2,211.20x = 3,865,739.04
  5. Step 5: Solve for x
    x = 3,865,739.04/2,211.20
  6. Step 6: Final answer
    x = 1,748.25

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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.