Home / 1,934.08-2,669.05-1,187.76

Finding the Fourth Proportional to 1,934.08, 2,669.05 and 1,187.76

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Solution

The fourth proportional to 1,934.08, 2,669.05 and 1,187.76 is: 1,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.08 : 2,669.05 = 1,187.76 : x
  2. Step 2: Convert to fraction form
    1,934.08/2,669.05 = 1,187.76/x
  3. Step 3: Cross multiply
    1,934.08x = 2,669.05 × 1,187.76
  4. Step 4: Simplify right side
    1,934.08x = 3,170,202.32
  5. Step 5: Solve for x
    x = 3,170,202.32/1,934.08
  6. Step 6: Final answer
    x = 1,639.13

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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.