Home / 5,147.14-7,722.12-1,684.36

Finding the Fourth Proportional to 5,147.14, 7,722.12 and 1,684.36

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Solution

The fourth proportional to 5,147.14, 7,722.12 and 1,684.36 is: 2,527.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.14 : 7,722.12 = 1,684.36 : x
  2. Step 2: Convert to fraction form
    5,147.14/7,722.12 = 1,684.36/x
  3. Step 3: Cross multiply
    5,147.14x = 7,722.12 × 1,684.36
  4. Step 4: Simplify right side
    5,147.14x = 13,006,830.04
  5. Step 5: Solve for x
    x = 13,006,830.04/5,147.14
  6. Step 6: Final answer
    x = 2,527.00

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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.