Home / 4,680.17-7,021.71-2,808.15

Finding the Fourth Proportional to 4,680.17, 7,021.71 and 2,808.15

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Solution

The fourth proportional to 4,680.17, 7,021.71 and 2,808.15 is: 4,213.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.17 : 7,021.71 = 2,808.15 : x
  2. Step 2: Convert to fraction form
    4,680.17/7,021.71 = 2,808.15/x
  3. Step 3: Cross multiply
    4,680.17x = 7,021.71 × 2,808.15
  4. Step 4: Simplify right side
    4,680.17x = 19,717,965.79
  5. Step 5: Solve for x
    x = 19,717,965.79/4,680.17
  6. Step 6: Final answer
    x = 4,213.09

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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.