Home / 3,742.96-5,615.06-1,403.80

Finding the Fourth Proportional to 3,742.96, 5,615.06 and 1,403.80

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Solution

The fourth proportional to 3,742.96, 5,615.06 and 1,403.80 is: 2,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.96 : 5,615.06 = 1,403.80 : x
  2. Step 2: Convert to fraction form
    3,742.96/5,615.06 = 1,403.80/x
  3. Step 3: Cross multiply
    3,742.96x = 5,615.06 × 1,403.80
  4. Step 4: Simplify right side
    3,742.96x = 7,882,421.23
  5. Step 5: Solve for x
    x = 7,882,421.23/3,742.96
  6. Step 6: Final answer
    x = 2,105.93

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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.