Home / 3,405.60-5,108.40-1,923.30

Finding the Fourth Proportional to 3,405.60, 5,108.40 and 1,923.30

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Solution

The fourth proportional to 3,405.60, 5,108.40 and 1,923.30 is: 2,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.60 : 5,108.40 = 1,923.30 : x
  2. Step 2: Convert to fraction form
    3,405.60/5,108.40 = 1,923.30/x
  3. Step 3: Cross multiply
    3,405.60x = 5,108.40 × 1,923.30
  4. Step 4: Simplify right side
    3,405.60x = 9,824,985.72
  5. Step 5: Solve for x
    x = 9,824,985.72/3,405.60
  6. Step 6: Final answer
    x = 2,884.95

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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.