Home / 5,211.40-7,808.46-3,669.16

Finding the Fourth Proportional to 5,211.40, 7,808.46 and 3,669.16

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Solution

The fourth proportional to 5,211.40, 7,808.46 and 3,669.16 is: 5,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.40 : 7,808.46 = 3,669.16 : x
  2. Step 2: Convert to fraction form
    5,211.40/7,808.46 = 3,669.16/x
  3. Step 3: Cross multiply
    5,211.40x = 7,808.46 × 3,669.16
  4. Step 4: Simplify right side
    5,211.40x = 28,650,489.09
  5. Step 5: Solve for x
    x = 28,650,489.09/5,211.40
  6. Step 6: Final answer
    x = 5,497.66

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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.