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Finding the Fourth Proportional to 6,473.82, 8,934.83 and 3,957.40

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Solution

The fourth proportional to 6,473.82, 8,934.83 and 3,957.40 is: 5,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.82 : 8,934.83 = 3,957.40 : x
  2. Step 2: Convert to fraction form
    6,473.82/8,934.83 = 3,957.40/x
  3. Step 3: Cross multiply
    6,473.82x = 8,934.83 × 3,957.40
  4. Step 4: Simplify right side
    6,473.82x = 35,358,696.24
  5. Step 5: Solve for x
    x = 35,358,696.24/6,473.82
  6. Step 6: Final answer
    x = 5,461.80

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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.