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Finding the Fourth Proportional to 3,665.66, 5,493.32 and 2,840.06

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Solution

The fourth proportional to 3,665.66, 5,493.32 and 2,840.06 is: 4,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,665.66 : 5,493.32 = 2,840.06 : x
  2. Step 2: Convert to fraction form
    3,665.66/5,493.32 = 2,840.06/x
  3. Step 3: Cross multiply
    3,665.66x = 5,493.32 × 2,840.06
  4. Step 4: Simplify right side
    3,665.66x = 15,601,368.58
  5. Step 5: Solve for x
    x = 15,601,368.58/3,665.66
  6. Step 6: Final answer
    x = 4,256.09

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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.