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Finding the Fourth Proportional to 2,866.05, 3,953.51 and 2,068.49

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Solution

The fourth proportional to 2,866.05, 3,953.51 and 2,068.49 is: 2,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.05 : 3,953.51 = 2,068.49 : x
  2. Step 2: Convert to fraction form
    2,866.05/3,953.51 = 2,068.49/x
  3. Step 3: Cross multiply
    2,866.05x = 3,953.51 × 2,068.49
  4. Step 4: Simplify right side
    2,866.05x = 8,177,780.96
  5. Step 5: Solve for x
    x = 8,177,780.96/2,866.05
  6. Step 6: Final answer
    x = 2,853.33

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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.