Home / 4,285.12-6,425.28-1,687.36

Finding the Fourth Proportional to 4,285.12, 6,425.28 and 1,687.36

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Solution

The fourth proportional to 4,285.12, 6,425.28 and 1,687.36 is: 2,530.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.12 : 6,425.28 = 1,687.36 : x
  2. Step 2: Convert to fraction form
    4,285.12/6,425.28 = 1,687.36/x
  3. Step 3: Cross multiply
    4,285.12x = 6,425.28 × 1,687.36
  4. Step 4: Simplify right side
    4,285.12x = 10,841,760.46
  5. Step 5: Solve for x
    x = 10,841,760.46/4,285.12
  6. Step 6: Final answer
    x = 2,530.09

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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.