Home / 3,190.32-4,785.47-1,887.84

Finding the Fourth Proportional to 3,190.32, 4,785.47 and 1,887.84

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Solution

The fourth proportional to 3,190.32, 4,785.47 and 1,887.84 is: 2,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.32 : 4,785.47 = 1,887.84 : x
  2. Step 2: Convert to fraction form
    3,190.32/4,785.47 = 1,887.84/x
  3. Step 3: Cross multiply
    3,190.32x = 4,785.47 × 1,887.84
  4. Step 4: Simplify right side
    3,190.32x = 9,034,177.76
  5. Step 5: Solve for x
    x = 9,034,177.76/3,190.32
  6. Step 6: Final answer
    x = 2,831.75

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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.