Home / 3,947.60-5,448.12-2,532.80

Finding the Fourth Proportional to 3,947.60, 5,448.12 and 2,532.80

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Solution

The fourth proportional to 3,947.60, 5,448.12 and 2,532.80 is: 3,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.60 : 5,448.12 = 2,532.80 : x
  2. Step 2: Convert to fraction form
    3,947.60/5,448.12 = 2,532.80/x
  3. Step 3: Cross multiply
    3,947.60x = 5,448.12 × 2,532.80
  4. Step 4: Simplify right side
    3,947.60x = 13,798,998.34
  5. Step 5: Solve for x
    x = 13,798,998.34/3,947.60
  6. Step 6: Final answer
    x = 3,495.54

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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.