Home / 3,115.36-4,668.48-1,650.08

Finding the Fourth Proportional to 3,115.36, 4,668.48 and 1,650.08

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Solution

The fourth proportional to 3,115.36, 4,668.48 and 1,650.08 is: 2,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.36 : 4,668.48 = 1,650.08 : x
  2. Step 2: Convert to fraction form
    3,115.36/4,668.48 = 1,650.08/x
  3. Step 3: Cross multiply
    3,115.36x = 4,668.48 × 1,650.08
  4. Step 4: Simplify right side
    3,115.36x = 7,703,365.48
  5. Step 5: Solve for x
    x = 7,703,365.48/3,115.36
  6. Step 6: Final answer
    x = 2,472.70

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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.