Home / 4,206.72-6,320.34-2,977.68

Finding the Fourth Proportional to 4,206.72, 6,320.34 and 2,977.68

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Solution

The fourth proportional to 4,206.72, 6,320.34 and 2,977.68 is: 4,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206.72 : 6,320.34 = 2,977.68 : x
  2. Step 2: Convert to fraction form
    4,206.72/6,320.34 = 2,977.68/x
  3. Step 3: Cross multiply
    4,206.72x = 6,320.34 × 2,977.68
  4. Step 4: Simplify right side
    4,206.72x = 18,819,950.01
  5. Step 5: Solve for x
    x = 18,819,950.01/4,206.72
  6. Step 6: Final answer
    x = 4,473.78

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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.