Home / 5,325.41-7,988.60-1,429.79

Finding the Fourth Proportional to 5,325.41, 7,988.60 and 1,429.79

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Solution

The fourth proportional to 5,325.41, 7,988.60 and 1,429.79 is: 2,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.41 : 7,988.60 = 1,429.79 : x
  2. Step 2: Convert to fraction form
    5,325.41/7,988.60 = 1,429.79/x
  3. Step 3: Cross multiply
    5,325.41x = 7,988.60 × 1,429.79
  4. Step 4: Simplify right side
    5,325.41x = 11,422,013.25
  5. Step 5: Solve for x
    x = 11,422,013.25/5,325.41
  6. Step 6: Final answer
    x = 2,144.81

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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.