Home / 3,609.10-5,406.64-2,372.78

Finding the Fourth Proportional to 3,609.10, 5,406.64 and 2,372.78

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Solution

The fourth proportional to 3,609.10, 5,406.64 and 2,372.78 is: 3,554.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.10 : 5,406.64 = 2,372.78 : x
  2. Step 2: Convert to fraction form
    3,609.10/5,406.64 = 2,372.78/x
  3. Step 3: Cross multiply
    3,609.10x = 5,406.64 × 2,372.78
  4. Step 4: Simplify right side
    3,609.10x = 12,828,767.26
  5. Step 5: Solve for x
    x = 12,828,767.26/3,609.10
  6. Step 6: Final answer
    x = 3,554.56

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1.5x scale

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.