Home / 3,157.62-4,357.12-1,831.14

Finding the Fourth Proportional to 3,157.62, 4,357.12 and 1,831.14

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Solution

The fourth proportional to 3,157.62, 4,357.12 and 1,831.14 is: 2,526.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.62 : 4,357.12 = 1,831.14 : x
  2. Step 2: Convert to fraction form
    3,157.62/4,357.12 = 1,831.14/x
  3. Step 3: Cross multiply
    3,157.62x = 4,357.12 × 1,831.14
  4. Step 4: Simplify right side
    3,157.62x = 7,978,496.72
  5. Step 5: Solve for x
    x = 7,978,496.72/3,157.62
  6. Step 6: Final answer
    x = 2,526.74

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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.