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Finding the Fourth Proportional to 3,012.69, 4,156.68 and 2,068.77

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Solution

The fourth proportional to 3,012.69, 4,156.68 and 2,068.77 is: 2,854.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.69 : 4,156.68 = 2,068.77 : x
  2. Step 2: Convert to fraction form
    3,012.69/4,156.68 = 2,068.77/x
  3. Step 3: Cross multiply
    3,012.69x = 4,156.68 × 2,068.77
  4. Step 4: Simplify right side
    3,012.69x = 8,599,214.88
  5. Step 5: Solve for x
    x = 8,599,214.88/3,012.69
  6. Step 6: Final answer
    x = 2,854.33

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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.