Home / 4,759.02-7,139.29-1,638.26

Finding the Fourth Proportional to 4,759.02, 7,139.29 and 1,638.26

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Solution

The fourth proportional to 4,759.02, 7,139.29 and 1,638.26 is: 2,457.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.02 : 7,139.29 = 1,638.26 : x
  2. Step 2: Convert to fraction form
    4,759.02/7,139.29 = 1,638.26/x
  3. Step 3: Cross multiply
    4,759.02x = 7,139.29 × 1,638.26
  4. Step 4: Simplify right side
    4,759.02x = 11,695,977.54
  5. Step 5: Solve for x
    x = 11,695,977.54/4,759.02
  6. Step 6: Final answer
    x = 2,457.64

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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.