Home / 5,406.34-7,467.78-3,992.92

Finding the Fourth Proportional to 5,406.34, 7,467.78 and 3,992.92

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Solution

The fourth proportional to 5,406.34, 7,467.78 and 3,992.92 is: 5,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.34 : 7,467.78 = 3,992.92 : x
  2. Step 2: Convert to fraction form
    5,406.34/7,467.78 = 3,992.92/x
  3. Step 3: Cross multiply
    5,406.34x = 7,467.78 × 3,992.92
  4. Step 4: Simplify right side
    5,406.34x = 29,818,248.12
  5. Step 5: Solve for x
    x = 29,818,248.12/5,406.34
  6. Step 6: Final answer
    x = 5,515.42

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Double scale
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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.