Home / 3,640.12-5,460.20-1,558.37

Finding the Fourth Proportional to 3,640.12, 5,460.20 and 1,558.37

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Solution

The fourth proportional to 3,640.12, 5,460.20 and 1,558.37 is: 2,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.12 : 5,460.20 = 1,558.37 : x
  2. Step 2: Convert to fraction form
    3,640.12/5,460.20 = 1,558.37/x
  3. Step 3: Cross multiply
    3,640.12x = 5,460.20 × 1,558.37
  4. Step 4: Simplify right side
    3,640.12x = 8,508,988.47
  5. Step 5: Solve for x
    x = 8,508,988.47/3,640.12
  6. Step 6: Final answer
    x = 2,337.56

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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.