Home / 1,935.76-2,671.77-1,190.11

Finding the Fourth Proportional to 1,935.76, 2,671.77 and 1,190.11

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Solution

The fourth proportional to 1,935.76, 2,671.77 and 1,190.11 is: 1,642.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.76 : 2,671.77 = 1,190.11 : x
  2. Step 2: Convert to fraction form
    1,935.76/2,671.77 = 1,190.11/x
  3. Step 3: Cross multiply
    1,935.76x = 2,671.77 × 1,190.11
  4. Step 4: Simplify right side
    1,935.76x = 3,179,700.19
  5. Step 5: Solve for x
    x = 3,179,700.19/1,935.76
  6. Step 6: Final answer
    x = 1,642.61

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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.