Home / 5,299.35-7,311.50-3,060.40

Finding the Fourth Proportional to 5,299.35, 7,311.50 and 3,060.40

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Solution

The fourth proportional to 5,299.35, 7,311.50 and 3,060.40 is: 4,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.35 : 7,311.50 = 3,060.40 : x
  2. Step 2: Convert to fraction form
    5,299.35/7,311.50 = 3,060.40/x
  3. Step 3: Cross multiply
    5,299.35x = 7,311.50 × 3,060.40
  4. Step 4: Simplify right side
    5,299.35x = 22,376,099.30
  5. Step 5: Solve for x
    x = 22,376,099.30/5,299.35
  6. Step 6: Final answer
    x = 4,222.43

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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.