Home / 4,457.78-6,686.72-1,992.73

Finding the Fourth Proportional to 4,457.78, 6,686.72 and 1,992.73

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Solution

The fourth proportional to 4,457.78, 6,686.72 and 1,992.73 is: 2,989.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.78 : 6,686.72 = 1,992.73 : x
  2. Step 2: Convert to fraction form
    4,457.78/6,686.72 = 1,992.73/x
  3. Step 3: Cross multiply
    4,457.78x = 6,686.72 × 1,992.73
  4. Step 4: Simplify right side
    4,457.78x = 13,324,827.55
  5. Step 5: Solve for x
    x = 13,324,827.55/4,457.78
  6. Step 6: Final answer
    x = 2,989.12

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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.