Home / 7,226.85-9,970.09-5,728.75

Finding the Fourth Proportional to 7,226.85, 9,970.09 and 5,728.75

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Solution

The fourth proportional to 7,226.85, 9,970.09 and 5,728.75 is: 7,903.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.85 : 9,970.09 = 5,728.75 : x
  2. Step 2: Convert to fraction form
    7,226.85/9,970.09 = 5,728.75/x
  3. Step 3: Cross multiply
    7,226.85x = 9,970.09 × 5,728.75
  4. Step 4: Simplify right side
    7,226.85x = 57,116,153.09
  5. Step 5: Solve for x
    x = 57,116,153.09/7,226.85
  6. Step 6: Final answer
    x = 7,903.33

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Half scale
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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.