Home / 5,176.51-7,759.59-2,678.77

Finding the Fourth Proportional to 5,176.51, 7,759.59 and 2,678.77

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Solution

The fourth proportional to 5,176.51, 7,759.59 and 2,678.77 is: 4,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.51 : 7,759.59 = 2,678.77 : x
  2. Step 2: Convert to fraction form
    5,176.51/7,759.59 = 2,678.77/x
  3. Step 3: Cross multiply
    5,176.51x = 7,759.59 × 2,678.77
  4. Step 4: Simplify right side
    5,176.51x = 20,786,156.90
  5. Step 5: Solve for x
    x = 20,786,156.90/5,176.51
  6. Step 6: Final answer
    x = 4,015.48

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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.