Home / 4,759.02-7,139.01-1,638.62

Finding the Fourth Proportional to 4,759.02, 7,139.01 and 1,638.62

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Solution

The fourth proportional to 4,759.02, 7,139.01 and 1,638.62 is: 2,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.02 : 7,139.01 = 1,638.62 : x
  2. Step 2: Convert to fraction form
    4,759.02/7,139.01 = 1,638.62/x
  3. Step 3: Cross multiply
    4,759.02x = 7,139.01 × 1,638.62
  4. Step 4: Simplify right side
    4,759.02x = 11,698,121.79
  5. Step 5: Solve for x
    x = 11,698,121.79/4,759.02
  6. Step 6: Final answer
    x = 2,458.09

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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.