Home / 6,919.47-10,380.30-3,586.68

Finding the Fourth Proportional to 6,919.47, 10,380.30 and 3,586.68

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Solution

The fourth proportional to 6,919.47, 10,380.30 and 3,586.68 is: 5,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.47 : 10,380.30 = 3,586.68 : x
  2. Step 2: Convert to fraction form
    6,919.47/10,380.30 = 3,586.68/x
  3. Step 3: Cross multiply
    6,919.47x = 10,380.30 × 3,586.68
  4. Step 4: Simplify right side
    6,919.47x = 37,230,814.40
  5. Step 5: Solve for x
    x = 37,230,814.40/6,919.47
  6. Step 6: Final answer
    x = 5,380.59

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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.