Home / 5,412.60-7,469.89-3,397.46

Finding the Fourth Proportional to 5,412.60, 7,469.89 and 3,397.46

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Solution

The fourth proportional to 5,412.60, 7,469.89 and 3,397.46 is: 4,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.60 : 7,469.89 = 3,397.46 : x
  2. Step 2: Convert to fraction form
    5,412.60/7,469.89 = 3,397.46/x
  3. Step 3: Cross multiply
    5,412.60x = 7,469.89 × 3,397.46
  4. Step 4: Simplify right side
    5,412.60x = 25,378,606.64
  5. Step 5: Solve for x
    x = 25,378,606.64/5,412.60
  6. Step 6: Final answer
    x = 4,688.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.