Home / 7,048.98-9,728.37-3,905.46

Finding the Fourth Proportional to 7,048.98, 9,728.37 and 3,905.46

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Solution

The fourth proportional to 7,048.98, 9,728.37 and 3,905.46 is: 5,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.98 : 9,728.37 = 3,905.46 : x
  2. Step 2: Convert to fraction form
    7,048.98/9,728.37 = 3,905.46/x
  3. Step 3: Cross multiply
    7,048.98x = 9,728.37 × 3,905.46
  4. Step 4: Simplify right side
    7,048.98x = 37,993,759.90
  5. Step 5: Solve for x
    x = 37,993,759.90/7,048.98
  6. Step 6: Final answer
    x = 5,389.97

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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.