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Finding the Fourth Proportional to 4,855.57, 7,285.64 and 2,392.47

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Solution

The fourth proportional to 4,855.57, 7,285.64 and 2,392.47 is: 3,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.57 : 7,285.64 = 2,392.47 : x
  2. Step 2: Convert to fraction form
    4,855.57/7,285.64 = 2,392.47/x
  3. Step 3: Cross multiply
    4,855.57x = 7,285.64 × 2,392.47
  4. Step 4: Simplify right side
    4,855.57x = 17,430,663.17
  5. Step 5: Solve for x
    x = 17,430,663.17/4,855.57
  6. Step 6: Final answer
    x = 3,589.83

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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.