Home / 5,517.96-7,615.08-3,421.68

Finding the Fourth Proportional to 5,517.96, 7,615.08 and 3,421.68

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Solution

The fourth proportional to 5,517.96, 7,615.08 and 3,421.68 is: 4,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.96 : 7,615.08 = 3,421.68 : x
  2. Step 2: Convert to fraction form
    5,517.96/7,615.08 = 3,421.68/x
  3. Step 3: Cross multiply
    5,517.96x = 7,615.08 × 3,421.68
  4. Step 4: Simplify right side
    5,517.96x = 26,056,366.93
  5. Step 5: Solve for x
    x = 26,056,366.93/5,517.96
  6. Step 6: Final answer
    x = 4,722.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.