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Finding the Fourth Proportional to 2,685.94, 4,029.11 and 1,124.37

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Solution

The fourth proportional to 2,685.94, 4,029.11 and 1,124.37 is: 1,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.94 : 4,029.11 = 1,124.37 : x
  2. Step 2: Convert to fraction form
    2,685.94/4,029.11 = 1,124.37/x
  3. Step 3: Cross multiply
    2,685.94x = 4,029.11 × 1,124.37
  4. Step 4: Simplify right side
    2,685.94x = 4,530,214.86
  5. Step 5: Solve for x
    x = 4,530,214.86/2,685.94
  6. Step 6: Final answer
    x = 1,686.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.