Home / 5,638.44-8,457.96-2,518.68

Finding the Fourth Proportional to 5,638.44, 8,457.96 and 2,518.68

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Solution

The fourth proportional to 5,638.44, 8,457.96 and 2,518.68 is: 3,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.44 : 8,457.96 = 2,518.68 : x
  2. Step 2: Convert to fraction form
    5,638.44/8,457.96 = 2,518.68/x
  3. Step 3: Cross multiply
    5,638.44x = 8,457.96 × 2,518.68
  4. Step 4: Simplify right side
    5,638.44x = 21,302,894.69
  5. Step 5: Solve for x
    x = 21,302,894.69/5,638.44
  6. Step 6: Final answer
    x = 3,778.15

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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.