Home / 5,211.68-7,818.88-1,748.96

Finding the Fourth Proportional to 5,211.68, 7,818.88 and 1,748.96

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Solution

The fourth proportional to 5,211.68, 7,818.88 and 1,748.96 is: 2,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.68 : 7,818.88 = 1,748.96 : x
  2. Step 2: Convert to fraction form
    5,211.68/7,818.88 = 1,748.96/x
  3. Step 3: Cross multiply
    5,211.68x = 7,818.88 × 1,748.96
  4. Step 4: Simplify right side
    5,211.68x = 13,674,908.36
  5. Step 5: Solve for x
    x = 13,674,908.36/5,211.68
  6. Step 6: Final answer
    x = 2,623.90

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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.