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Finding the Fourth Proportional to 5,290.55, 7,936.07 and 4,364.39

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Solution

The fourth proportional to 5,290.55, 7,936.07 and 4,364.39 is: 6,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.55 : 7,936.07 = 4,364.39 : x
  2. Step 2: Convert to fraction form
    5,290.55/7,936.07 = 4,364.39/x
  3. Step 3: Cross multiply
    5,290.55x = 7,936.07 × 4,364.39
  4. Step 4: Simplify right side
    5,290.55x = 34,636,064.87
  5. Step 5: Solve for x
    x = 34,636,064.87/5,290.55
  6. Step 6: Final answer
    x = 6,546.79

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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.