Home / 3,827.66-5,280.85-2,148.83

Finding the Fourth Proportional to 3,827.66, 5,280.85 and 2,148.83

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Solution

The fourth proportional to 3,827.66, 5,280.85 and 2,148.83 is: 2,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.66 : 5,280.85 = 2,148.83 : x
  2. Step 2: Convert to fraction form
    3,827.66/5,280.85 = 2,148.83/x
  3. Step 3: Cross multiply
    3,827.66x = 5,280.85 × 2,148.83
  4. Step 4: Simplify right side
    3,827.66x = 11,347,632.90
  5. Step 5: Solve for x
    x = 11,347,632.90/3,827.66
  6. Step 6: Final answer
    x = 2,964.64

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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.