Home / 5,015.79-7,516.51-2,819.91

Finding the Fourth Proportional to 5,015.79, 7,516.51 and 2,819.91

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Solution

The fourth proportional to 5,015.79, 7,516.51 and 2,819.91 is: 4,225.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.79 : 7,516.51 = 2,819.91 : x
  2. Step 2: Convert to fraction form
    5,015.79/7,516.51 = 2,819.91/x
  3. Step 3: Cross multiply
    5,015.79x = 7,516.51 × 2,819.91
  4. Step 4: Simplify right side
    5,015.79x = 21,195,881.71
  5. Step 5: Solve for x
    x = 21,195,881.71/5,015.79
  6. Step 6: Final answer
    x = 4,225.83

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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.