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Finding the Fourth Proportional to 6,469.73, 8,931.45 and 4,384.79

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Solution

The fourth proportional to 6,469.73, 8,931.45 and 4,384.79 is: 6,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.73 : 8,931.45 = 4,384.79 : x
  2. Step 2: Convert to fraction form
    6,469.73/8,931.45 = 4,384.79/x
  3. Step 3: Cross multiply
    6,469.73x = 8,931.45 × 4,384.79
  4. Step 4: Simplify right side
    6,469.73x = 39,162,532.65
  5. Step 5: Solve for x
    x = 39,162,532.65/6,469.73
  6. Step 6: Final answer
    x = 6,053.19

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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.