Home / 5,261.49-7,893.72-2,143.71

Finding the Fourth Proportional to 5,261.49, 7,893.72 and 2,143.71

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Solution

The fourth proportional to 5,261.49, 7,893.72 and 2,143.71 is: 3,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.49 : 7,893.72 = 2,143.71 : x
  2. Step 2: Convert to fraction form
    5,261.49/7,893.72 = 2,143.71/x
  3. Step 3: Cross multiply
    5,261.49x = 7,893.72 × 2,143.71
  4. Step 4: Simplify right side
    5,261.49x = 16,921,846.50
  5. Step 5: Solve for x
    x = 16,921,846.50/5,261.49
  6. Step 6: Final answer
    x = 3,216.17

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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.