Home / 3,538.32-5,313.96-2,812.56

Finding the Fourth Proportional to 3,538.32, 5,313.96 and 2,812.56

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Solution

The fourth proportional to 3,538.32, 5,313.96 and 2,812.56 is: 4,223.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.32 : 5,313.96 = 2,812.56 : x
  2. Step 2: Convert to fraction form
    3,538.32/5,313.96 = 2,812.56/x
  3. Step 3: Cross multiply
    3,538.32x = 5,313.96 × 2,812.56
  4. Step 4: Simplify right side
    3,538.32x = 14,945,831.34
  5. Step 5: Solve for x
    x = 14,945,831.34/3,538.32
  6. Step 6: Final answer
    x = 4,223.99

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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.