Home / 3,740.40-5,609.52-1,431.36

Finding the Fourth Proportional to 3,740.40, 5,609.52 and 1,431.36

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Solution

The fourth proportional to 3,740.40, 5,609.52 and 1,431.36 is: 2,146.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.40 : 5,609.52 = 1,431.36 : x
  2. Step 2: Convert to fraction form
    3,740.40/5,609.52 = 1,431.36/x
  3. Step 3: Cross multiply
    3,740.40x = 5,609.52 × 1,431.36
  4. Step 4: Simplify right side
    3,740.40x = 8,029,242.55
  5. Step 5: Solve for x
    x = 8,029,242.55/3,740.40
  6. Step 6: Final answer
    x = 2,146.63

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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.