Home / 7,190.20-9,922.40-4,046.40

Finding the Fourth Proportional to 7,190.20, 9,922.40 and 4,046.40

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Solution

The fourth proportional to 7,190.20, 9,922.40 and 4,046.40 is: 5,583.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.20 : 9,922.40 = 4,046.40 : x
  2. Step 2: Convert to fraction form
    7,190.20/9,922.40 = 4,046.40/x
  3. Step 3: Cross multiply
    7,190.20x = 9,922.40 × 4,046.40
  4. Step 4: Simplify right side
    7,190.20x = 40,149,999.36
  5. Step 5: Solve for x
    x = 40,149,999.36/7,190.20
  6. Step 6: Final answer
    x = 5,583.99

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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.