Home / 7,190.72-9,924.12-4,125.77

Finding the Fourth Proportional to 7,190.72, 9,924.12 and 4,125.77

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Solution

The fourth proportional to 7,190.72, 9,924.12 and 4,125.77 is: 5,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.72 : 9,924.12 = 4,125.77 : x
  2. Step 2: Convert to fraction form
    7,190.72/9,924.12 = 4,125.77/x
  3. Step 3: Cross multiply
    7,190.72x = 9,924.12 × 4,125.77
  4. Step 4: Simplify right side
    7,190.72x = 40,944,586.95
  5. Step 5: Solve for x
    x = 40,944,586.95/7,190.72
  6. Step 6: Final answer
    x = 5,694.09

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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.