Home / 7,660.61-11,490.92-2,113.78

Finding the Fourth Proportional to 7,660.61, 11,490.92 and 2,113.78

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Solution

The fourth proportional to 7,660.61, 11,490.92 and 2,113.78 is: 3,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.61 : 11,490.92 = 2,113.78 : x
  2. Step 2: Convert to fraction form
    7,660.61/11,490.92 = 2,113.78/x
  3. Step 3: Cross multiply
    7,660.61x = 11,490.92 × 2,113.78
  4. Step 4: Simplify right side
    7,660.61x = 24,289,276.88
  5. Step 5: Solve for x
    x = 24,289,276.88/7,660.61
  6. Step 6: Final answer
    x = 3,170.67

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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.