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Finding the Fourth Proportional to 3,640.87, 5,024.46 and 2,068.99

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Solution

The fourth proportional to 3,640.87, 5,024.46 and 2,068.99 is: 2,855.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.87 : 5,024.46 = 2,068.99 : x
  2. Step 2: Convert to fraction form
    3,640.87/5,024.46 = 2,068.99/x
  3. Step 3: Cross multiply
    3,640.87x = 5,024.46 × 2,068.99
  4. Step 4: Simplify right side
    3,640.87x = 10,395,557.50
  5. Step 5: Solve for x
    x = 10,395,557.50/3,640.87
  6. Step 6: Final answer
    x = 2,855.24

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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.