Home / 6,451-8,901.52-3,579.68

Finding the Fourth Proportional to 6,451, 8,901.52 and 3,579.68

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Solution

The fourth proportional to 6,451, 8,901.52 and 3,579.68 is: 4,939.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451 : 8,901.52 = 3,579.68 : x
  2. Step 2: Convert to fraction form
    6,451/8,901.52 = 3,579.68/x
  3. Step 3: Cross multiply
    6,451x = 8,901.52 × 3,579.68
  4. Step 4: Simplify right side
    6,451x = 31,864,593.11
  5. Step 5: Solve for x
    x = 31,864,593.11/6,451
  6. Step 6: Final answer
    x = 4,939.48

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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.