Home / 7,620.90-11,431.38-3,462.36

Finding the Fourth Proportional to 7,620.90, 11,431.38 and 3,462.36

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Solution

The fourth proportional to 7,620.90, 11,431.38 and 3,462.36 is: 5,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.90 : 11,431.38 = 3,462.36 : x
  2. Step 2: Convert to fraction form
    7,620.90/11,431.38 = 3,462.36/x
  3. Step 3: Cross multiply
    7,620.90x = 11,431.38 × 3,462.36
  4. Step 4: Simplify right side
    7,620.90x = 39,579,552.86
  5. Step 5: Solve for x
    x = 39,579,552.86/7,620.90
  6. Step 6: Final answer
    x = 5,193.55

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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.