Home / 6,421.20-9,629.52-2,472.76

Finding the Fourth Proportional to 6,421.20, 9,629.52 and 2,472.76

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Solution

The fourth proportional to 6,421.20, 9,629.52 and 2,472.76 is: 3,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.20 : 9,629.52 = 2,472.76 : x
  2. Step 2: Convert to fraction form
    6,421.20/9,629.52 = 2,472.76/x
  3. Step 3: Cross multiply
    6,421.20x = 9,629.52 × 2,472.76
  4. Step 4: Simplify right side
    6,421.20x = 23,811,491.88
  5. Step 5: Solve for x
    x = 23,811,491.88/6,421.20
  6. Step 6: Final answer
    x = 3,708.26

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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.