Home / 4,284.62-6,428.01-1,687.76

Finding the Fourth Proportional to 4,284.62, 6,428.01 and 1,687.76

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Solution

The fourth proportional to 4,284.62, 6,428.01 and 1,687.76 is: 2,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.62 : 6,428.01 = 1,687.76 : x
  2. Step 2: Convert to fraction form
    4,284.62/6,428.01 = 1,687.76/x
  3. Step 3: Cross multiply
    4,284.62x = 6,428.01 × 1,687.76
  4. Step 4: Simplify right side
    4,284.62x = 10,848,938.16
  5. Step 5: Solve for x
    x = 10,848,938.16/4,284.62
  6. Step 6: Final answer
    x = 2,532.07

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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.