Home / 4,372.72-6,558.99-1,085.78

Finding the Fourth Proportional to 4,372.72, 6,558.99 and 1,085.78

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Solution

The fourth proportional to 4,372.72, 6,558.99 and 1,085.78 is: 1,628.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,372.72 : 6,558.99 = 1,085.78 : x
  2. Step 2: Convert to fraction form
    4,372.72/6,558.99 = 1,085.78/x
  3. Step 3: Cross multiply
    4,372.72x = 6,558.99 × 1,085.78
  4. Step 4: Simplify right side
    4,372.72x = 7,121,620.16
  5. Step 5: Solve for x
    x = 7,121,620.16/4,372.72
  6. Step 6: Final answer
    x = 1,628.65

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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.