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Finding the Fourth Proportional to 7,092.70, 10,639.06 and 2,928.14

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Solution

The fourth proportional to 7,092.70, 10,639.06 and 2,928.14 is: 4,392.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.70 : 10,639.06 = 2,928.14 : x
  2. Step 2: Convert to fraction form
    7,092.70/10,639.06 = 2,928.14/x
  3. Step 3: Cross multiply
    7,092.70x = 10,639.06 × 2,928.14
  4. Step 4: Simplify right side
    7,092.70x = 31,152,596.63
  5. Step 5: Solve for x
    x = 31,152,596.63/7,092.70
  6. Step 6: Final answer
    x = 4,392.21

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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.