Home / 1,958.40-2,697.96-1,677.72

Finding the Fourth Proportional to 1,958.40, 2,697.96 and 1,677.72

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Solution

The fourth proportional to 1,958.40, 2,697.96 and 1,677.72 is: 2,311.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.40 : 2,697.96 = 1,677.72 : x
  2. Step 2: Convert to fraction form
    1,958.40/2,697.96 = 1,677.72/x
  3. Step 3: Cross multiply
    1,958.40x = 2,697.96 × 1,677.72
  4. Step 4: Simplify right side
    1,958.40x = 4,526,421.45
  5. Step 5: Solve for x
    x = 4,526,421.45/1,958.40
  6. Step 6: Final answer
    x = 2,311.29

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