Home / 5,148.96-7,723.80-1,685.04

Finding the Fourth Proportional to 5,148.96, 7,723.80 and 1,685.04

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Solution

The fourth proportional to 5,148.96, 7,723.80 and 1,685.04 is: 2,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.96 : 7,723.80 = 1,685.04 : x
  2. Step 2: Convert to fraction form
    5,148.96/7,723.80 = 1,685.04/x
  3. Step 3: Cross multiply
    5,148.96x = 7,723.80 × 1,685.04
  4. Step 4: Simplify right side
    5,148.96x = 13,014,911.95
  5. Step 5: Solve for x
    x = 13,014,911.95/5,148.96
  6. Step 6: Final answer
    x = 2,527.68

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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.