Home / 7,405.80-11,085.46-4,108.28

Finding the Fourth Proportional to 7,405.80, 11,085.46 and 4,108.28

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Solution

The fourth proportional to 7,405.80, 11,085.46 and 4,108.28 is: 6,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.80 : 11,085.46 = 4,108.28 : x
  2. Step 2: Convert to fraction form
    7,405.80/11,085.46 = 4,108.28/x
  3. Step 3: Cross multiply
    7,405.80x = 11,085.46 × 4,108.28
  4. Step 4: Simplify right side
    7,405.80x = 45,542,173.61
  5. Step 5: Solve for x
    x = 45,542,173.61/7,405.80
  6. Step 6: Final answer
    x = 6,149.53

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1.5x scale

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.