Home / 7,400.79-11,077.97-4,103.28

Finding the Fourth Proportional to 7,400.79, 11,077.97 and 4,103.28

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Solution

The fourth proportional to 7,400.79, 11,077.97 and 4,103.28 is: 6,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.79 : 11,077.97 = 4,103.28 : x
  2. Step 2: Convert to fraction form
    7,400.79/11,077.97 = 4,103.28/x
  3. Step 3: Cross multiply
    7,400.79x = 11,077.97 × 4,103.28
  4. Step 4: Simplify right side
    7,400.79x = 45,455,992.23
  5. Step 5: Solve for x
    x = 45,455,992.23/7,400.79
  6. Step 6: Final answer
    x = 6,142.05

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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.