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Finding the Fourth Proportional to 5,643.58, 7,788.87 and 3,160.06

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Solution

The fourth proportional to 5,643.58, 7,788.87 and 3,160.06 is: 4,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.58 : 7,788.87 = 3,160.06 : x
  2. Step 2: Convert to fraction form
    5,643.58/7,788.87 = 3,160.06/x
  3. Step 3: Cross multiply
    5,643.58x = 7,788.87 × 3,160.06
  4. Step 4: Simplify right side
    5,643.58x = 24,613,296.53
  5. Step 5: Solve for x
    x = 24,613,296.53/5,643.58
  6. Step 6: Final answer
    x = 4,361.29

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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.