Home / 3,970.60-5,947.80-1,884.28

Finding the Fourth Proportional to 3,970.60, 5,947.80 and 1,884.28

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Solution

The fourth proportional to 3,970.60, 5,947.80 and 1,884.28 is: 2,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.60 : 5,947.80 = 1,884.28 : x
  2. Step 2: Convert to fraction form
    3,970.60/5,947.80 = 1,884.28/x
  3. Step 3: Cross multiply
    3,970.60x = 5,947.80 × 1,884.28
  4. Step 4: Simplify right side
    3,970.60x = 11,207,320.58
  5. Step 5: Solve for x
    x = 11,207,320.58/3,970.60
  6. Step 6: Final answer
    x = 2,822.58

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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.