Home / 3,157.58-4,357.50-1,831.34

Finding the Fourth Proportional to 3,157.58, 4,357.50 and 1,831.34

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Solution

The fourth proportional to 3,157.58, 4,357.50 and 1,831.34 is: 2,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.58 : 4,357.50 = 1,831.34 : x
  2. Step 2: Convert to fraction form
    3,157.58/4,357.50 = 1,831.34/x
  3. Step 3: Cross multiply
    3,157.58x = 4,357.50 × 1,831.34
  4. Step 4: Simplify right side
    3,157.58x = 7,980,064.05
  5. Step 5: Solve for x
    x = 7,980,064.05/3,157.58
  6. Step 6: Final answer
    x = 2,527.27

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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.