Home / 5,213.10-7,819.67-1,515.35

Finding the Fourth Proportional to 5,213.10, 7,819.67 and 1,515.35

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Solution

The fourth proportional to 5,213.10, 7,819.67 and 1,515.35 is: 2,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.10 : 7,819.67 = 1,515.35 : x
  2. Step 2: Convert to fraction form
    5,213.10/7,819.67 = 1,515.35/x
  3. Step 3: Cross multiply
    5,213.10x = 7,819.67 × 1,515.35
  4. Step 4: Simplify right side
    5,213.10x = 11,849,536.93
  5. Step 5: Solve for x
    x = 11,849,536.93/5,213.10
  6. Step 6: Final answer
    x = 2,273.03

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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.