Home / 5,379.35-7,422.73-2,989.15

Finding the Fourth Proportional to 5,379.35, 7,422.73 and 2,989.15

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Solution

The fourth proportional to 5,379.35, 7,422.73 and 2,989.15 is: 4,124.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.35 : 7,422.73 = 2,989.15 : x
  2. Step 2: Convert to fraction form
    5,379.35/7,422.73 = 2,989.15/x
  3. Step 3: Cross multiply
    5,379.35x = 7,422.73 × 2,989.15
  4. Step 4: Simplify right side
    5,379.35x = 22,187,627.35
  5. Step 5: Solve for x
    x = 22,187,627.35/5,379.35
  6. Step 6: Final answer
    x = 4,124.60

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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.