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Finding the Fourth Proportional to 7,670.79, 11,506.19 and 3,285.41

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Solution

The fourth proportional to 7,670.79, 11,506.19 and 3,285.41 is: 4,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.79 : 11,506.19 = 3,285.41 : x
  2. Step 2: Convert to fraction form
    7,670.79/11,506.19 = 3,285.41/x
  3. Step 3: Cross multiply
    7,670.79x = 11,506.19 × 3,285.41
  4. Step 4: Simplify right side
    7,670.79x = 37,802,477.73
  5. Step 5: Solve for x
    x = 37,802,477.73/7,670.79
  6. Step 6: Final answer
    x = 4,928.11

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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.