Home / 1,934.19-2,669.11-1,188.05

Finding the Fourth Proportional to 1,934.19, 2,669.11 and 1,188.05

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Solution

The fourth proportional to 1,934.19, 2,669.11 and 1,188.05 is: 1,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.19 : 2,669.11 = 1,188.05 : x
  2. Step 2: Convert to fraction form
    1,934.19/2,669.11 = 1,188.05/x
  3. Step 3: Cross multiply
    1,934.19x = 2,669.11 × 1,188.05
  4. Step 4: Simplify right side
    1,934.19x = 3,171,019.82
  5. Step 5: Solve for x
    x = 3,171,019.82/1,934.19
  6. Step 6: Final answer
    x = 1,639.46

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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.