Home / 3,500.81-4,831.14-1,928.87

Finding the Fourth Proportional to 3,500.81, 4,831.14 and 1,928.87

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Solution

The fourth proportional to 3,500.81, 4,831.14 and 1,928.87 is: 2,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.81 : 4,831.14 = 1,928.87 : x
  2. Step 2: Convert to fraction form
    3,500.81/4,831.14 = 1,928.87/x
  3. Step 3: Cross multiply
    3,500.81x = 4,831.14 × 1,928.87
  4. Step 4: Simplify right side
    3,500.81x = 9,318,645.86
  5. Step 5: Solve for x
    x = 9,318,645.86/3,500.81
  6. Step 6: Final answer
    x = 2,661.85

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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.