Home / 4,648.20-6,415.66-2,878.76

Finding the Fourth Proportional to 4,648.20, 6,415.66 and 2,878.76

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Solution

The fourth proportional to 4,648.20, 6,415.66 and 2,878.76 is: 3,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,648.20 : 6,415.66 = 2,878.76 : x
  2. Step 2: Convert to fraction form
    4,648.20/6,415.66 = 2,878.76/x
  3. Step 3: Cross multiply
    4,648.20x = 6,415.66 × 2,878.76
  4. Step 4: Simplify right side
    4,648.20x = 18,469,145.38
  5. Step 5: Solve for x
    x = 18,469,145.38/4,648.20
  6. Step 6: Final answer
    x = 3,973.40

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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.