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Finding the Fourth Proportional to 5,282.39, 7,283.07 and 3,390.63

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Solution

The fourth proportional to 5,282.39, 7,283.07 and 3,390.63 is: 4,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.39 : 7,283.07 = 3,390.63 : x
  2. Step 2: Convert to fraction form
    5,282.39/7,283.07 = 3,390.63/x
  3. Step 3: Cross multiply
    5,282.39x = 7,283.07 × 3,390.63
  4. Step 4: Simplify right side
    5,282.39x = 24,694,195.63
  5. Step 5: Solve for x
    x = 24,694,195.63/5,282.39
  6. Step 6: Final answer
    x = 4,674.82

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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.