Home / 3,157.52-4,357.31-1,831.35

Finding the Fourth Proportional to 3,157.52, 4,357.31 and 1,831.35

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Solution

The fourth proportional to 3,157.52, 4,357.31 and 1,831.35 is: 2,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.52 : 4,357.31 = 1,831.35 : x
  2. Step 2: Convert to fraction form
    3,157.52/4,357.31 = 1,831.35/x
  3. Step 3: Cross multiply
    3,157.52x = 4,357.31 × 1,831.35
  4. Step 4: Simplify right side
    3,157.52x = 7,979,764.25
  5. Step 5: Solve for x
    x = 7,979,764.25/3,157.52
  6. Step 6: Final answer
    x = 2,527.22

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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.