Home / 7,601.22-11,390.97-3,430.87

Finding the Fourth Proportional to 7,601.22, 11,390.97 and 3,430.87

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Solution

The fourth proportional to 7,601.22, 11,390.97 and 3,430.87 is: 5,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,601.22 : 11,390.97 = 3,430.87 : x
  2. Step 2: Convert to fraction form
    7,601.22/11,390.97 = 3,430.87/x
  3. Step 3: Cross multiply
    7,601.22x = 11,390.97 × 3,430.87
  4. Step 4: Simplify right side
    7,601.22x = 39,080,908.77
  5. Step 5: Solve for x
    x = 39,080,908.77/7,601.22
  6. Step 6: Final answer
    x = 5,141.40

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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.