Home / 3,157.96-4,357.68-1,831.75

Finding the Fourth Proportional to 3,157.96, 4,357.68 and 1,831.75

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Solution

The fourth proportional to 3,157.96, 4,357.68 and 1,831.75 is: 2,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.96 : 4,357.68 = 1,831.75 : x
  2. Step 2: Convert to fraction form
    3,157.96/4,357.68 = 1,831.75/x
  3. Step 3: Cross multiply
    3,157.96x = 4,357.68 × 1,831.75
  4. Step 4: Simplify right side
    3,157.96x = 7,982,180.34
  5. Step 5: Solve for x
    x = 7,982,180.34/3,157.96
  6. Step 6: Final answer
    x = 2,527.64

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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.