Home / 2,071.60-3,107.40-1,933.90

Finding the Fourth Proportional to 2,071.60, 3,107.40 and 1,933.90

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Solution

The fourth proportional to 2,071.60, 3,107.40 and 1,933.90 is: 2,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.60 : 3,107.40 = 1,933.90 : x
  2. Step 2: Convert to fraction form
    2,071.60/3,107.40 = 1,933.90/x
  3. Step 3: Cross multiply
    2,071.60x = 3,107.40 × 1,933.90
  4. Step 4: Simplify right side
    2,071.60x = 6,009,400.86
  5. Step 5: Solve for x
    x = 6,009,400.86/2,071.60
  6. Step 6: Final answer
    x = 2,900.85

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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.