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Finding the Fourth Proportional to 5,288.80, 7,928.74 and 3,336.70

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Solution

The fourth proportional to 5,288.80, 7,928.74 and 3,336.70 is: 5,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.80 : 7,928.74 = 3,336.70 : x
  2. Step 2: Convert to fraction form
    5,288.80/7,928.74 = 3,336.70/x
  3. Step 3: Cross multiply
    5,288.80x = 7,928.74 × 3,336.70
  4. Step 4: Simplify right side
    5,288.80x = 26,455,826.76
  5. Step 5: Solve for x
    x = 26,455,826.76/5,288.80
  6. Step 6: Final answer
    x = 5,002.24

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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.