Home / 5,638.56-8,457.44-2,518.85

Finding the Fourth Proportional to 5,638.56, 8,457.44 and 2,518.85

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Solution

The fourth proportional to 5,638.56, 8,457.44 and 2,518.85 is: 3,778.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.56 : 8,457.44 = 2,518.85 : x
  2. Step 2: Convert to fraction form
    5,638.56/8,457.44 = 2,518.85/x
  3. Step 3: Cross multiply
    5,638.56x = 8,457.44 × 2,518.85
  4. Step 4: Simplify right side
    5,638.56x = 21,302,967.86
  5. Step 5: Solve for x
    x = 21,302,967.86/5,638.56
  6. Step 6: Final answer
    x = 3,778.09

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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.