Home / 4,759.23-7,139.90-1,639.17

Finding the Fourth Proportional to 4,759.23, 7,139.90 and 1,639.17

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Solution

The fourth proportional to 4,759.23, 7,139.90 and 1,639.17 is: 2,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.23 : 7,139.90 = 1,639.17 : x
  2. Step 2: Convert to fraction form
    4,759.23/7,139.90 = 1,639.17/x
  3. Step 3: Cross multiply
    4,759.23x = 7,139.90 × 1,639.17
  4. Step 4: Simplify right side
    4,759.23x = 11,703,509.88
  5. Step 5: Solve for x
    x = 11,703,509.88/4,759.23
  6. Step 6: Final answer
    x = 2,459.12

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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.