Home / 4,287.26-6,434.86-2,647.02

Finding the Fourth Proportional to 4,287.26, 6,434.86 and 2,647.02

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Solution

The fourth proportional to 4,287.26, 6,434.86 and 2,647.02 is: 3,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.26 : 6,434.86 = 2,647.02 : x
  2. Step 2: Convert to fraction form
    4,287.26/6,434.86 = 2,647.02/x
  3. Step 3: Cross multiply
    4,287.26x = 6,434.86 × 2,647.02
  4. Step 4: Simplify right side
    4,287.26x = 17,033,203.12
  5. Step 5: Solve for x
    x = 17,033,203.12/4,287.26
  6. Step 6: Final answer
    x = 3,972.98

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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.