Home / 2,247.72-3,369.30-860.70

Finding the Fourth Proportional to 2,247.72, 3,369.30 and 860.70

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Solution

The fourth proportional to 2,247.72, 3,369.30 and 860.70 is: 1,290.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.72 : 3,369.30 = 860.70 : x
  2. Step 2: Convert to fraction form
    2,247.72/3,369.30 = 860.70/x
  3. Step 3: Cross multiply
    2,247.72x = 3,369.30 × 860.70
  4. Step 4: Simplify right side
    2,247.72x = 2,899,956.51
  5. Step 5: Solve for x
    x = 2,899,956.51/2,247.72
  6. Step 6: Final answer
    x = 1,290.18

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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.