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Finding the Fourth Proportional to 7,193.92, 9,928.80 and 4,050.40

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Solution

The fourth proportional to 7,193.92, 9,928.80 and 4,050.40 is: 5,590.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.92 : 9,928.80 = 4,050.40 : x
  2. Step 2: Convert to fraction form
    7,193.92/9,928.80 = 4,050.40/x
  3. Step 3: Cross multiply
    7,193.92x = 9,928.80 × 4,050.40
  4. Step 4: Simplify right side
    7,193.92x = 40,215,611.52
  5. Step 5: Solve for x
    x = 40,215,611.52/7,193.92
  6. Step 6: Final answer
    x = 5,590.22

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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.