Home / 5,161.50-7,742.82-1,873.86

Finding the Fourth Proportional to 5,161.50, 7,742.82 and 1,873.86

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Solution

The fourth proportional to 5,161.50, 7,742.82 and 1,873.86 is: 2,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.50 : 7,742.82 = 1,873.86 : x
  2. Step 2: Convert to fraction form
    5,161.50/7,742.82 = 1,873.86/x
  3. Step 3: Cross multiply
    5,161.50x = 7,742.82 × 1,873.86
  4. Step 4: Simplify right side
    5,161.50x = 14,508,960.69
  5. Step 5: Solve for x
    x = 14,508,960.69/5,161.50
  6. Step 6: Final answer
    x = 2,811.00

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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.