Home / 2,956.20-4,430.36-1,105.44

Finding the Fourth Proportional to 2,956.20, 4,430.36 and 1,105.44

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Solution

The fourth proportional to 2,956.20, 4,430.36 and 1,105.44 is: 1,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.20 : 4,430.36 = 1,105.44 : x
  2. Step 2: Convert to fraction form
    2,956.20/4,430.36 = 1,105.44/x
  3. Step 3: Cross multiply
    2,956.20x = 4,430.36 × 1,105.44
  4. Step 4: Simplify right side
    2,956.20x = 4,897,491.63
  5. Step 5: Solve for x
    x = 4,897,491.63/2,956.20
  6. Step 6: Final answer
    x = 1,656.68

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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.