Home / 5,170.65-7,759.44-1,838.77

Finding the Fourth Proportional to 5,170.65, 7,759.44 and 1,838.77

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Solution

The fourth proportional to 5,170.65, 7,759.44 and 1,838.77 is: 2,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.65 : 7,759.44 = 1,838.77 : x
  2. Step 2: Convert to fraction form
    5,170.65/7,759.44 = 1,838.77/x
  3. Step 3: Cross multiply
    5,170.65x = 7,759.44 × 1,838.77
  4. Step 4: Simplify right side
    5,170.65x = 14,267,825.49
  5. Step 5: Solve for x
    x = 14,267,825.49/5,170.65
  6. Step 6: Final answer
    x = 2,759.39

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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.