Home / 3,749.20-5,623.80-1,151.80

Finding the Fourth Proportional to 3,749.20, 5,623.80 and 1,151.80

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Solution

The fourth proportional to 3,749.20, 5,623.80 and 1,151.80 is: 1,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.20 : 5,623.80 = 1,151.80 : x
  2. Step 2: Convert to fraction form
    3,749.20/5,623.80 = 1,151.80/x
  3. Step 3: Cross multiply
    3,749.20x = 5,623.80 × 1,151.80
  4. Step 4: Simplify right side
    3,749.20x = 6,477,492.84
  5. Step 5: Solve for x
    x = 6,477,492.84/3,749.20
  6. Step 6: Final answer
    x = 1,727.70

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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.