Home / 7,489.70-11,238.60-3,330.35

Finding the Fourth Proportional to 7,489.70, 11,238.60 and 3,330.35

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Solution

The fourth proportional to 7,489.70, 11,238.60 and 3,330.35 is: 4,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.70 : 11,238.60 = 3,330.35 : x
  2. Step 2: Convert to fraction form
    7,489.70/11,238.60 = 3,330.35/x
  3. Step 3: Cross multiply
    7,489.70x = 11,238.60 × 3,330.35
  4. Step 4: Simplify right side
    7,489.70x = 37,428,471.51
  5. Step 5: Solve for x
    x = 37,428,471.51/7,489.70
  6. Step 6: Final answer
    x = 4,997.33

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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.