Home / 1,934.38-2,666.50-1,186.96

Finding the Fourth Proportional to 1,934.38, 2,666.50 and 1,186.96

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Solution

The fourth proportional to 1,934.38, 2,666.50 and 1,186.96 is: 1,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.38 : 2,666.50 = 1,186.96 : x
  2. Step 2: Convert to fraction form
    1,934.38/2,666.50 = 1,186.96/x
  3. Step 3: Cross multiply
    1,934.38x = 2,666.50 × 1,186.96
  4. Step 4: Simplify right side
    1,934.38x = 3,165,028.84
  5. Step 5: Solve for x
    x = 3,165,028.84/1,934.38
  6. Step 6: Final answer
    x = 1,636.20

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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.