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Finding the Fourth Proportional to 3,869.87, 5,808.90 and 2,410.05

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Solution

The fourth proportional to 3,869.87, 5,808.90 and 2,410.05 is: 3,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.87 : 5,808.90 = 2,410.05 : x
  2. Step 2: Convert to fraction form
    3,869.87/5,808.90 = 2,410.05/x
  3. Step 3: Cross multiply
    3,869.87x = 5,808.90 × 2,410.05
  4. Step 4: Simplify right side
    3,869.87x = 13,999,739.45
  5. Step 5: Solve for x
    x = 13,999,739.45/3,869.87
  6. Step 6: Final answer
    x = 3,617.63

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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.