Home / 6,320.61-8,721.72-3,631.68

Finding the Fourth Proportional to 6,320.61, 8,721.72 and 3,631.68

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Solution

The fourth proportional to 6,320.61, 8,721.72 and 3,631.68 is: 5,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.61 : 8,721.72 = 3,631.68 : x
  2. Step 2: Convert to fraction form
    6,320.61/8,721.72 = 3,631.68/x
  3. Step 3: Cross multiply
    6,320.61x = 8,721.72 × 3,631.68
  4. Step 4: Simplify right side
    6,320.61x = 31,674,496.09
  5. Step 5: Solve for x
    x = 31,674,496.09/6,320.61
  6. Step 6: Final answer
    x = 5,011.30

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.