Home / 4,759.72-7,131.48-2,678.92

Finding the Fourth Proportional to 4,759.72, 7,131.48 and 2,678.92

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Solution

The fourth proportional to 4,759.72, 7,131.48 and 2,678.92 is: 4,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.72 : 7,131.48 = 2,678.92 : x
  2. Step 2: Convert to fraction form
    4,759.72/7,131.48 = 2,678.92/x
  3. Step 3: Cross multiply
    4,759.72x = 7,131.48 × 2,678.92
  4. Step 4: Simplify right side
    4,759.72x = 19,104,664.40
  5. Step 5: Solve for x
    x = 19,104,664.40/4,759.72
  6. Step 6: Final answer
    x = 4,013.82

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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.