Home / 4,680.35-6,455.99-2,790.72

Finding the Fourth Proportional to 4,680.35, 6,455.99 and 2,790.72

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Solution

The fourth proportional to 4,680.35, 6,455.99 and 2,790.72 is: 3,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.35 : 6,455.99 = 2,790.72 : x
  2. Step 2: Convert to fraction form
    4,680.35/6,455.99 = 2,790.72/x
  3. Step 3: Cross multiply
    4,680.35x = 6,455.99 × 2,790.72
  4. Step 4: Simplify right side
    4,680.35x = 18,016,846.46
  5. Step 5: Solve for x
    x = 18,016,846.46/4,680.35
  6. Step 6: Final answer
    x = 3,849.47

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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.