Home / 1,935.75-2,671.61-1,189.77

Finding the Fourth Proportional to 1,935.75, 2,671.61 and 1,189.77

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Solution

The fourth proportional to 1,935.75, 2,671.61 and 1,189.77 is: 1,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.75 : 2,671.61 = 1,189.77 : x
  2. Step 2: Convert to fraction form
    1,935.75/2,671.61 = 1,189.77/x
  3. Step 3: Cross multiply
    1,935.75x = 2,671.61 × 1,189.77
  4. Step 4: Simplify right side
    1,935.75x = 3,178,595.48
  5. Step 5: Solve for x
    x = 3,178,595.48/1,935.75
  6. Step 6: Final answer
    x = 1,642.05

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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.