Home / 4,292.76-5,920.79-2,878.05

Finding the Fourth Proportional to 4,292.76, 5,920.79 and 2,878.05

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Solution

The fourth proportional to 4,292.76, 5,920.79 and 2,878.05 is: 3,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.76 : 5,920.79 = 2,878.05 : x
  2. Step 2: Convert to fraction form
    4,292.76/5,920.79 = 2,878.05/x
  3. Step 3: Cross multiply
    4,292.76x = 5,920.79 × 2,878.05
  4. Step 4: Simplify right side
    4,292.76x = 17,040,315.27
  5. Step 5: Solve for x
    x = 17,040,315.27/4,292.76
  6. Step 6: Final answer
    x = 3,969.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.