Home / 3,887.37-5,830.05-1,113.40

Finding the Fourth Proportional to 3,887.37, 5,830.05 and 1,113.40

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Solution

The fourth proportional to 3,887.37, 5,830.05 and 1,113.40 is: 1,669.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.37 : 5,830.05 = 1,113.40 : x
  2. Step 2: Convert to fraction form
    3,887.37/5,830.05 = 1,113.40/x
  3. Step 3: Cross multiply
    3,887.37x = 5,830.05 × 1,113.40
  4. Step 4: Simplify right side
    3,887.37x = 6,491,177.67
  5. Step 5: Solve for x
    x = 6,491,177.67/3,887.37
  6. Step 6: Final answer
    x = 1,669.81

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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.