Home / 4,759.31-7,133.87-1,638.43

Finding the Fourth Proportional to 4,759.31, 7,133.87 and 1,638.43

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Solution

The fourth proportional to 4,759.31, 7,133.87 and 1,638.43 is: 2,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.31 : 7,133.87 = 1,638.43 : x
  2. Step 2: Convert to fraction form
    4,759.31/7,133.87 = 1,638.43/x
  3. Step 3: Cross multiply
    4,759.31x = 7,133.87 × 1,638.43
  4. Step 4: Simplify right side
    4,759.31x = 11,688,332.89
  5. Step 5: Solve for x
    x = 11,688,332.89/4,759.31
  6. Step 6: Final answer
    x = 2,455.89

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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.