Home / 3,622.78-5,430.28-2,372.89

Finding the Fourth Proportional to 3,622.78, 5,430.28 and 2,372.89

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Solution

The fourth proportional to 3,622.78, 5,430.28 and 2,372.89 is: 3,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.78 : 5,430.28 = 2,372.89 : x
  2. Step 2: Convert to fraction form
    3,622.78/5,430.28 = 2,372.89/x
  3. Step 3: Cross multiply
    3,622.78x = 5,430.28 × 2,372.89
  4. Step 4: Simplify right side
    3,622.78x = 12,885,457.11
  5. Step 5: Solve for x
    x = 12,885,457.11/3,622.78
  6. Step 6: Final answer
    x = 3,556.79

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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.