Home / 4,759.19-7,139.60-1,639.52

Finding the Fourth Proportional to 4,759.19, 7,139.60 and 1,639.52

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Solution

The fourth proportional to 4,759.19, 7,139.60 and 1,639.52 is: 2,459.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.19 : 7,139.60 = 1,639.52 : x
  2. Step 2: Convert to fraction form
    4,759.19/7,139.60 = 1,639.52/x
  3. Step 3: Cross multiply
    4,759.19x = 7,139.60 × 1,639.52
  4. Step 4: Simplify right side
    4,759.19x = 11,705,473.10
  5. Step 5: Solve for x
    x = 11,705,473.10/4,759.19
  6. Step 6: Final answer
    x = 2,459.55

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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.