Home / 3,931.32-5,425.32-2,163

Finding the Fourth Proportional to 3,931.32, 5,425.32 and 2,163

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Solution

The fourth proportional to 3,931.32, 5,425.32 and 2,163 is: 2,984.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.32 : 5,425.32 = 2,163 : x
  2. Step 2: Convert to fraction form
    3,931.32/5,425.32 = 2,163/x
  3. Step 3: Cross multiply
    3,931.32x = 5,425.32 × 2,163
  4. Step 4: Simplify right side
    3,931.32x = 11,734,967.16
  5. Step 5: Solve for x
    x = 11,734,967.16/3,931.32
  6. Step 6: Final answer
    x = 2,984.99

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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.