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Finding the Fourth Proportional to 3,365.04, 5,019.96 and 3,129.36

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Solution

The fourth proportional to 3,365.04, 5,019.96 and 3,129.36 is: 4,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.04 : 5,019.96 = 3,129.36 : x
  2. Step 2: Convert to fraction form
    3,365.04/5,019.96 = 3,129.36/x
  3. Step 3: Cross multiply
    3,365.04x = 5,019.96 × 3,129.36
  4. Step 4: Simplify right side
    3,365.04x = 15,709,262.03
  5. Step 5: Solve for x
    x = 15,709,262.03/3,365.04
  6. Step 6: Final answer
    x = 4,668.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.