Home / 3,157.22-4,357.91-1,831.25

Finding the Fourth Proportional to 3,157.22, 4,357.91 and 1,831.25

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Solution

The fourth proportional to 3,157.22, 4,357.91 and 1,831.25 is: 2,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.22 : 4,357.91 = 1,831.25 : x
  2. Step 2: Convert to fraction form
    3,157.22/4,357.91 = 1,831.25/x
  3. Step 3: Cross multiply
    3,157.22x = 4,357.91 × 1,831.25
  4. Step 4: Simplify right side
    3,157.22x = 7,980,405.48
  5. Step 5: Solve for x
    x = 7,980,405.48/3,157.22
  6. Step 6: Final answer
    x = 2,527.67

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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.