Home / 7,831.74-11,744.70-3,150.18

Finding the Fourth Proportional to 7,831.74, 11,744.70 and 3,150.18

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Solution

The fourth proportional to 7,831.74, 11,744.70 and 3,150.18 is: 4,724.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.74 : 11,744.70 = 3,150.18 : x
  2. Step 2: Convert to fraction form
    7,831.74/11,744.70 = 3,150.18/x
  3. Step 3: Cross multiply
    7,831.74x = 11,744.70 × 3,150.18
  4. Step 4: Simplify right side
    7,831.74x = 36,997,919.05
  5. Step 5: Solve for x
    x = 36,997,919.05/7,831.74
  6. Step 6: Final answer
    x = 4,724.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.