Home / 4,086.94-5,640.20-2,318.58

Finding the Fourth Proportional to 4,086.94, 5,640.20 and 2,318.58

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Solution

The fourth proportional to 4,086.94, 5,640.20 and 2,318.58 is: 3,199.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.94 : 5,640.20 = 2,318.58 : x
  2. Step 2: Convert to fraction form
    4,086.94/5,640.20 = 2,318.58/x
  3. Step 3: Cross multiply
    4,086.94x = 5,640.20 × 2,318.58
  4. Step 4: Simplify right side
    4,086.94x = 13,077,254.92
  5. Step 5: Solve for x
    x = 13,077,254.92/4,086.94
  6. Step 6: Final answer
    x = 3,199.77

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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.