Home / 4,759.85-7,140.24-1,639.44

Finding the Fourth Proportional to 4,759.85, 7,140.24 and 1,639.44

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Solution

The fourth proportional to 4,759.85, 7,140.24 and 1,639.44 is: 2,459.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.85 : 7,140.24 = 1,639.44 : x
  2. Step 2: Convert to fraction form
    4,759.85/7,140.24 = 1,639.44/x
  3. Step 3: Cross multiply
    4,759.85x = 7,140.24 × 1,639.44
  4. Step 4: Simplify right side
    4,759.85x = 11,705,995.07
  5. Step 5: Solve for x
    x = 11,705,995.07/4,759.85
  6. Step 6: Final answer
    x = 2,459.32

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1.5x scale

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.