Home / 4,287.33-6,431.00-1,325.30

Finding the Fourth Proportional to 4,287.33, 6,431.00 and 1,325.30

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Solution

The fourth proportional to 4,287.33, 6,431.00 and 1,325.30 is: 1,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.33 : 6,431.00 = 1,325.30 : x
  2. Step 2: Convert to fraction form
    4,287.33/6,431.00 = 1,325.30/x
  3. Step 3: Cross multiply
    4,287.33x = 6,431.00 × 1,325.30
  4. Step 4: Simplify right side
    4,287.33x = 8,522,965.52
  5. Step 5: Solve for x
    x = 8,522,965.52/4,287.33
  6. Step 6: Final answer
    x = 1,987.94

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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.