Home / 1,935.64-2,671.60-1,190.24

Finding the Fourth Proportional to 1,935.64, 2,671.60 and 1,190.24

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Solution

The fourth proportional to 1,935.64, 2,671.60 and 1,190.24 is: 1,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.64 : 2,671.60 = 1,190.24 : x
  2. Step 2: Convert to fraction form
    1,935.64/2,671.60 = 1,190.24/x
  3. Step 3: Cross multiply
    1,935.64x = 2,671.60 × 1,190.24
  4. Step 4: Simplify right side
    1,935.64x = 3,179,831.83
  5. Step 5: Solve for x
    x = 3,179,831.83/1,935.64
  6. Step 6: Final answer
    x = 1,642.78

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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.