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Finding the Fourth Proportional to 3,898.92, 5,840.80 and 3,483.48

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Solution

The fourth proportional to 3,898.92, 5,840.80 and 3,483.48 is: 5,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.92 : 5,840.80 = 3,483.48 : x
  2. Step 2: Convert to fraction form
    3,898.92/5,840.80 = 3,483.48/x
  3. Step 3: Cross multiply
    3,898.92x = 5,840.80 × 3,483.48
  4. Step 4: Simplify right side
    3,898.92x = 20,346,309.98
  5. Step 5: Solve for x
    x = 20,346,309.98/3,898.92
  6. Step 6: Final answer
    x = 5,218.45

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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.