Home / 2,451.13-3,677.40-719.75

Finding the Fourth Proportional to 2,451.13, 3,677.40 and 719.75

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Solution

The fourth proportional to 2,451.13, 3,677.40 and 719.75 is: 1,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.13 : 3,677.40 = 719.75 : x
  2. Step 2: Convert to fraction form
    2,451.13/3,677.40 = 719.75/x
  3. Step 3: Cross multiply
    2,451.13x = 3,677.40 × 719.75
  4. Step 4: Simplify right side
    2,451.13x = 2,646,817.84
  5. Step 5: Solve for x
    x = 2,646,817.84/2,451.13
  6. Step 6: Final answer
    x = 1,079.84

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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.