Home / 3,165.38-4,748.13-1,085.37

Finding the Fourth Proportional to 3,165.38, 4,748.13 and 1,085.37

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Solution

The fourth proportional to 3,165.38, 4,748.13 and 1,085.37 is: 1,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.38 : 4,748.13 = 1,085.37 : x
  2. Step 2: Convert to fraction form
    3,165.38/4,748.13 = 1,085.37/x
  3. Step 3: Cross multiply
    3,165.38x = 4,748.13 × 1,085.37
  4. Step 4: Simplify right side
    3,165.38x = 5,153,477.86
  5. Step 5: Solve for x
    x = 5,153,477.86/3,165.38
  6. Step 6: Final answer
    x = 1,628.08

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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.