Home / 3,827.70-5,280.93-2,431.26

Finding the Fourth Proportional to 3,827.70, 5,280.93 and 2,431.26

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Solution

The fourth proportional to 3,827.70, 5,280.93 and 2,431.26 is: 3,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.70 : 5,280.93 = 2,431.26 : x
  2. Step 2: Convert to fraction form
    3,827.70/5,280.93 = 2,431.26/x
  3. Step 3: Cross multiply
    3,827.70x = 5,280.93 × 2,431.26
  4. Step 4: Simplify right side
    3,827.70x = 12,839,313.87
  5. Step 5: Solve for x
    x = 12,839,313.87/3,827.70
  6. Step 6: Final answer
    x = 3,354.32

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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.