Home / 3,157.68-4,356.36-1,831.14

Finding the Fourth Proportional to 3,157.68, 4,356.36 and 1,831.14

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Solution

The fourth proportional to 3,157.68, 4,356.36 and 1,831.14 is: 2,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.68 : 4,356.36 = 1,831.14 : x
  2. Step 2: Convert to fraction form
    3,157.68/4,356.36 = 1,831.14/x
  3. Step 3: Cross multiply
    3,157.68x = 4,356.36 × 1,831.14
  4. Step 4: Simplify right side
    3,157.68x = 7,977,105.05
  5. Step 5: Solve for x
    x = 7,977,105.05/3,157.68
  6. Step 6: Final answer
    x = 2,526.26

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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.