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Finding the Fourth Proportional to 6,362.40, 8,780.22 and 3,491.22

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Solution

The fourth proportional to 6,362.40, 8,780.22 and 3,491.22 is: 4,817.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,362.40 : 8,780.22 = 3,491.22 : x
  2. Step 2: Convert to fraction form
    6,362.40/8,780.22 = 3,491.22/x
  3. Step 3: Cross multiply
    6,362.40x = 8,780.22 × 3,491.22
  4. Step 4: Simplify right side
    6,362.40x = 30,653,679.67
  5. Step 5: Solve for x
    x = 30,653,679.67/6,362.40
  6. Step 6: Final answer
    x = 4,817.94

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1.5x scale

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.