Home / 3,644.87-5,455.55-1,887.45

Finding the Fourth Proportional to 3,644.87, 5,455.55 and 1,887.45

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Solution

The fourth proportional to 3,644.87, 5,455.55 and 1,887.45 is: 2,825.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,644.87 : 5,455.55 = 1,887.45 : x
  2. Step 2: Convert to fraction form
    3,644.87/5,455.55 = 1,887.45/x
  3. Step 3: Cross multiply
    3,644.87x = 5,455.55 × 1,887.45
  4. Step 4: Simplify right side
    3,644.87x = 10,297,068.41
  5. Step 5: Solve for x
    x = 10,297,068.41/3,644.87
  6. Step 6: Final answer
    x = 2,825.09

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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.