Home / 1,447.38-1,986.92-1,411.14

Finding the Fourth Proportional to 1,447.38, 1,986.92 and 1,411.14

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Solution

The fourth proportional to 1,447.38, 1,986.92 and 1,411.14 is: 1,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.38 : 1,986.92 = 1,411.14 : x
  2. Step 2: Convert to fraction form
    1,447.38/1,986.92 = 1,411.14/x
  3. Step 3: Cross multiply
    1,447.38x = 1,986.92 × 1,411.14
  4. Step 4: Simplify right side
    1,447.38x = 2,803,815.23
  5. Step 5: Solve for x
    x = 2,803,815.23/1,447.38
  6. Step 6: Final answer
    x = 1,937.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.