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Finding the Fourth Proportional to 2,886.33, 3,983.65 and 2,754.86

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Solution

The fourth proportional to 2,886.33, 3,983.65 and 2,754.86 is: 3,802.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.33 : 3,983.65 = 2,754.86 : x
  2. Step 2: Convert to fraction form
    2,886.33/3,983.65 = 2,754.86/x
  3. Step 3: Cross multiply
    2,886.33x = 3,983.65 × 2,754.86
  4. Step 4: Simplify right side
    2,886.33x = 10,974,378.12
  5. Step 5: Solve for x
    x = 10,974,378.12/2,886.33
  6. Step 6: Final answer
    x = 3,802.19

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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.