Home / 3,887.72-5,829.82-1,113.75

Finding the Fourth Proportional to 3,887.72, 5,829.82 and 1,113.75

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Solution

The fourth proportional to 3,887.72, 5,829.82 and 1,113.75 is: 1,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.72 : 5,829.82 = 1,113.75 : x
  2. Step 2: Convert to fraction form
    3,887.72/5,829.82 = 1,113.75/x
  3. Step 3: Cross multiply
    3,887.72x = 5,829.82 × 1,113.75
  4. Step 4: Simplify right side
    3,887.72x = 6,492,956.46
  5. Step 5: Solve for x
    x = 6,492,956.46/3,887.72
  6. Step 6: Final answer
    x = 1,670.12

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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.